Which of the terms below best describes a regulatory mechanism in which the end product of a metabolic pathway inhibits an enzyme that catalyzes an early step in the pathway? cooperative inhibition allosteric inhibition metabolic inhibition feedback inhibition Which process/ processes involve base-pairing as a part of its/their mechanism? translation of mRNA to form polypeptide OOOO none is correct DNA replication all are correct transcription of DNA to form RNA
Answers
The term that best describes a regulatory mechanism in which the end product of a metabolic pathway inhibits an enzyme that catalyzes an early step in the pathway is feedback inhibition.
What is feedback inhibition? Feedback inhibition is a type of metabolic regulation that allows cells to regulate their metabolism through the use of enzymes. The rate of a metabolic pathway is slowed by feedback inhibition when an enzyme at the beginning of the pathway is inhibited by its end product.
The pathway continues to function as long as the end product is in low demand, but as the end product accumulates, it eventually inhibits the pathway, preventing excess synthesis of the end product.
Feedback inhibition is a method of regulating enzymatic activity in which the activity of an enzyme is inhibited by the product of the pathway it is involved in. It is a negative feedback mechanism that controls the rate of the metabolic pathway.
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Related Questions
Which of these are part of the respiratory system? (Select all that apply.)
larynx
sinuses
heart
lungs
Answers
Answer:
larynx, sinuses, lungs
Explanation:
Answer:
larynx, sinuses, lungs
I know this is old, but just in case anyone else needs it
Please help ASAP I do understand this
Answers
Answer:
it means to use the data table to complete the graph that is all u have to do it is easy so jus read it over n over again that might help u.
Explanation:
Answer:
Explanation:I believe there are five main reasons for the declines experienced in several Midwestern states.
1 – Hemorrhagic Disease
We had a record hemorrhagic disease (HD) outbreak in 2007 and another in 2012. The Midwest lost tens of thousands of deer to HD and many states haven’t fully recovered from it.
2 – Severe Winter Weather
We experienced severe winter weather during the past few years. Severe winters in the Upper Midwest can increase adult mortality, reduce fawn survival, and impact antler growth the following year as bucks have to recover the additional weight lost during the severe winter. This leaves less nutrition for antler growth.
3 – Intentional Herd Reduction
Several states were intentionally reducing their deer herds over the past decade. Many states were aggressively harvesting antlerless deer, and when you reduce the herd the buck harvest declines. In the Midwest today, only one state wildlife agency (Indiana) says it is trying to reduce the deer herd, the others are either trying to stabilize or grow their herds.
4 – Falling Fawn Recruitment
Eight states in the Midwest measure fawn recruitment rates today. In my opinion, every state should be monitoring this important statistic. Back in 2005 only five of the eight states measured fawn survival, and it has dropped in all five from 2005 to 2014. You can blame it on predators, nutrition, climate change, or whatever you’d like, but the reality is far fewer fawns are surviving today than they did a decade ago. Approximately every other fawn born is a buck fawn, so fewer fawns means fewer bucks are recruited into the herd.
5 – Habitat Loss
The last reason is arguably the most important in this list, and it is habitat loss. From 2007 to 2014 the U.S. enrolled 9.1 million fewer acres into the USDA’s Conservation Reserve Program (CRP). The CRP is the most successful federal wildlife habitat program, and it pays landowners a fee to convert highly erodible cropland and environmentally sensitive acreage to wildlife habitat. It can include grasses, trees, windbreaks, shelterbelts, buffer strips and more. In most cases, CRP acres provide exceptional wildlife habitat, and this is especially true in the intensively row-cropped Midwest where cover was already the limiting habitat component.
compare the two procedures used to obtain the cells needed for preparing a fetal karyotype?
Answers
Amniocentesis. This procedure collects a sample of the amniotic fluid that surrounds the unborn baby during pregnancy. The fluid contains cells from the baby that can be tested. Amniocentesis is usually done between week 15 and 20 of pregnancy.
Is TT genotype homozygous or heterozygous?
Answers
The genotype TT stands for the homozygous state, in which both alleles of a gene are present in a homologous pair. Alleles are various variations of a single gene.
If an organism possesses 2 versions of the same allele for a gene, it is said to be homozygous. An organism might be homozygous recessive (RR) or homozygous dominant (TT) (tt). A heterozygous creature is one that has two different alleles (Tt) for the same gene.
The presence of two identical alleles at a specific gene locus is referred to as the homozygous condition. A homozygous genotype can have two alleles with the same variance or two normal alleles.
A person is considered to be homozygous if they have two equal copies of a particular gene. A genotype with heterozygosity, on the other hand, possesses distinct alleles.
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which type of gland consists of a secretory region and a duct running to a surface? multiple choice question.
Answers
Answer: sweat glands
Explanation: these glands secrete a big quantity of water with toxines on your skin, so in a surface.
A salivary gland is a type of gland consisting of a secretory area and a tube running over the surface
Salivary glands that produce the saliva, which aids in the digestion, keeps the mouth moist, and supports healthy teeth. Under and behind the chin are her three major salivary glands: the parotid, sublingual, and submandibular glands. Salivary glands lubricate the mouth, aid in swallowing, aid digestion, and protect teeth from harmful bacteria. There are three main types of salivary glands: the sublingual, submandibular, and parotid glands. . They are divided into two main types: Major salivary glands, including the parotid, submandibular, and sublingual glands; minor salivary glands that line the upper respiratory and gastrointestinal tracts and predominantly cover the entire mouth
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Which is true in both mitosis and meiosis?
A. production of haploid cells
B. division of two cells into four
C. cytokinesis after the nucleus divides
D. formation of genetically identical cells
Answers
Answer:
C) Cytokinesis after the nucleus divides
Explanation:
skin color of a certain species of fish is inhearited by a single gene with four diffrent alliese how many types of gamets would be possible with this organism
Answers
There are 4 different types of gametes would be possible in skin colour of fish controlled by single gene.
As per Mendel's law of dominance, "Only one type of the characteristic is passed down to the next generation when parents with distinct, opposing qualities are crossed together. Only the dominant phenotypic characteristic will be present in the hybrid offspring.
In case of fish each diploid parent will have two type of alleles, so it mean both parent can form 4 different type of variation of single gene of fish.
Hence, single parent have two allele of single gene.
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Which is the highest level of organization shown in the diagram?
Select one:
a. a cell
b. a tissue
c. an organ
d. a system
Answers
The highest level of organization shown in the diagram is an organ system, in this case, the circulatory system (Option d).
What is an organ system in the body?An organ system can be defined as a group of different organs and structures in the body that work together to play a function such as in the case of the circulatory system transporting oxygen and nutrients to all body cells.
Therefore, with this data, we can see that an organ system in the body is composed of different organs.
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if glucose is in higher concentration outside the cell than inside, but the plasma membrane and other surface layers of the cell do not allow glucose to pass through, which is the most likely type of transport for glucose? and Why?
a simple diffusion
b Osmosis
c Facilitated diffusion via a gated channel
d Facilitated diffusion via an aquaporin
e Facilitated diffusion via an ion channel
Answers
Answer:
a
Explanation:
ok ok as you were saying you said it is hard for the glucose concentration in the body this also had to go out so but the plasma membranes and other surfaces layers cell layers of the layer of the soil do not allow to close glucose to pass through which is most likely type of transport type of transport for kids and you still said why it is because it gives energy to the body
Why do plants need nitrate ions? (1mark)A) for making amino acidsB) for making fatty acidsC) for making glucoseD) for making starch
Answers
The correct answer is the letter A) for making amino acids
Plants require nitrates in order for them to make amino acids. Bacteria that are present in the soil convert the nitrogen into ammonium and nitrate, which are taken up by plants through the process of nitrogen fixation.
One function of gap junctions appears to be to ________________ the activities of like cells in a particular area.
Answers
One function of gap junctions appears to be to cellular communication the activities of like cells in a particular area.
Connexins, membrane proteins that connect nearby cells, create tiny, fluid-filled tunnels known as connexons at gap junctions. Instead of being fused together like in tight junctions, the plasma membranes of gap junctions are separated by a very small intercellular gap (space).
Ions and tiny molecules can move from the cytosol of one cell to another through connexons. In avascular tissues like the cornea and lens of the eye, the transfer of nutrients and possibly wastes occurs through gap junctions.
Some of the chemical and electrical signals that control development and cell differentiation in a developing embryo travel through gap junctions.
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Molecules used forgrowth and repair______,and molecules used forenergy_______.A. become part of the body, are lost as CO2 and H2OB. become CO2 and H20. becomepart of the bodyC. become ATP. become C6H1206D. become C6H1206, become ATP
Answers
Molecules used for growth and repair become part of the body, and molecules used for energy are lost as CO2 and H2O.
What molecules does a fat cell store
Answers
Answer:
Triglycerides
Explanation:
Fat cells are also called Adipose cells. They are cells found all over the body and majorly functions in the storage of energy storing substances called TRIGLYCERIDES. Triglycerides are a type of lipids composed of a glycerol molecule and three fatty acids molecules.
Triglycerides, like every other lipid, are biomolecules that store a large amount of energy. However, they are stored in specialized cells called FAT OR ADIPOSE CELLS.
Before delving into the study of the muscles throughout the body, it is helpful to consider the conventions used when naming them. Discuss one rule for naming muscles, and cite an example that illustrates the rule.
Answers
The naming of muscles is very important and is discussed below:
What is study of muscles called as?The study of muscles, including their physical makeup, fiber types, distinct functions, and relationships among various muscle groups, is known as myology (from the Latin words myos, which means "muscle," and logia, which means "logic").
The shape, size, fiber orientation, location, number of origins, or action of the muscle are some examples of these. Some muscles' names correspond to their shapes. One huge, triangular-shaped muscle that covers the shoulder is the deltoid. Because the Greek letter delta is a triangle, it has a triangular name.
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At the end of meiosis i there are __________, whereas at the end of meiosis ii there is/are __________.
Answers
At the end of Meiosis 1 there are 2 haploid daughter cells while Meiosis 2 ends with 4 haploid daughter cells
At the end of Meiosis 1 there are 2 haploid daughter cells while Meiosis 2 ends with 4 haploid daughter cells
What is meiosis ?In Meiosis a single cell divides twice to produce four haploid daughter cells otherwise called as gametes; It can occur in two substages such as meiosis I and meiosis II.
Humans consist of 46 chromosomes in every cell, where 23 chromosomes came from one of our parents and 23 very similar chromosomes that came from the other parents.
Meiosis I consist of substages such as Prophase I where nuclear envelope disintegrates, Chromosomes begin to condense, Spindle fibers appear.
Secondly Prometaphase I where Spindle fibers attach to the centromere whereas Metaphase I where homologous chromosomes align together at the equatorial plate, in Anaphase I the homologous chromosomes move towards the opposite poles.
Telophase I where Spindle fibres disappear, Cytokinesis I where the cytoplasm and the cell division result in 2 non-identical haploid daughter cells.
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The diagram below shows the structure of an animal cell.
s
Which number label represents the cell membrane?
0 1
O2
04
06
Answers
Answer:
The cell membrane is label 1.
Explanation:
The cell membrane is a biological membrane that separates the interior of all cells from the outside environment which protects the cell from its environment.
Constructing a Device to Regulate the
Release of Energy - Student Guide
Assignment Summary
In this project, you will design, construct, test, and modify a device that releases thermal energy by
chemical processes. You will be provided specific materials by your instructor, and will use these
materials to design a device that releases energy to the environment. Next, you will build the device and
test it by gathering temperature data. Finally, you will use your data to evaluate the design and decide
how to improve your device.
Answers
Answer:
Thermal Energy and Chemical Reactions
The device controlled the activation as shown by the water holding room temperature for 15 seconds until activation by crushing the pills. The temperature rose 30° over two minutes,showing a measurable exothermic reaction from the Calcium Chloride dissolving in the water.
Pour 5mL water in a quart bag
Place Thermometer in the bag to make contact
Fill two gelatin 000 capsules with 1 gram of Calcium Chloride
Place capsules into the bag
Wait 15 seconds to crush the capsules while they are submerged in the water
-Temperature
0 seconds 75 degrees
15 seconds - Activation 75 degrees
30 seconds 85 degrees
60 seconds 95 degrees
90 seconds 104 degrees
120 seconds 105 degrees
Conclusion: During a reaction, thermal energy from the environment is converted into chemical energy stored in the products.
Answer:
Thermal energies & Chemical reactions
Explanation:
Thermal Energy and Chemical Reactions
The device controlled the activation as shown by the water holding room temperature for 15 seconds until activation by crushing the pills. The temperature rose 30° over two minutes,showing a measurable exothermic reaction from the Calcium Chloride dissolving in the water.
Pour 5mL water in a quart bag
Place Thermometer in the bag to make contact
Fill two gelatin 000 capsules with 1 gram of Calcium Chloride
Place capsules into the bag
Wait 15 seconds to crush the capsules while they are submerged in the water
-Temperature
0 seconds 75 degrees
15 seconds - Activation 75 degrees
30 seconds 85 degrees
60 seconds 95 degrees
90 seconds 104 degrees
120 seconds 105 degrees
Final Conclusion: During a reaction, thermal energy from the environment is converted into chemical energy stored in the products.
The waves of the electromagnetic spectrum can travel through....
Answers
Answer:
waves, microwaves, infrared, optical, ultraviolet, X-rays, and gamma-rays.
Explanation:
The most important factor in determining attraction is usually physical attraction
Answers
True, the most important factor in determining attraction can vary for different individuals; however, physical attraction is often a significant element.
It involves being drawn to someone's appearance or physical features, which can serve as an initial catalyst for further exploration of compatibility, such as shared values, interests, and personality traits. Remember, attraction is subjective and can be influenced by various factors.
Physical Attraction as an Initial Catalyst: Physical attraction refers to the instinctive or immediate appeal one feels towards someone based on their physical appearance or features.
It serves as an initial catalyst that sparks interest and draws individuals towards each other. The visual aspect of physical attraction can evoke feelings of admiration, desire, and curiosity.
Initial Impressions: Physical appearance is often the first aspect of a person that we notice and evaluate. Factors such as facial symmetry, body proportions, attractiveness of features, grooming, and overall physical health can influence our perception of someone's attractiveness.
These initial impressions can create a baseline attraction that motivates individuals to explore further connections and interactions.
Individual Variation: It is important to recognize that what is considered physically attractive can vary greatly between individuals due to personal preferences, cultural influences, and societal standards.
Beauty ideals can differ across cultures, and individuals may have their own unique preferences shaped by personal experiences, upbringing, and media influences.
Beyond Physical Attraction: While physical attraction can serve as the initial spark, it is important to note that it is not the sole determinant of long-term compatibility or relationship satisfaction.
As individuals get to know each other, other factors such as shared values, interests, personality traits, emotional connection, and communication become increasingly important in forming deeper connections and maintaining relationships.
Subjectivity and Influencing Factors: Attraction is highly subjective and can be influenced by various factors beyond physical appearance. Cultural, social, and psychological factors all play a role in shaping individual preferences and perceptions of attractiveness.
Personal experiences, past relationships, and individual aspirations also contribute to what individuals find appealing.
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The most important factor in determining attraction is usually physical attraction. Is this statement true or false?
Can some consumers be identified as multiple different types of consumers?
Answers
You can only be you, Although each has their own thoughts and opinions
1. Describe the situation in which Mendel's law of independent assortment is violated. Two sentences max.
2. Explain two reasons why siblings do not look exactly alike. For the purpose of this question - ignore the possibility of twins.
Answers
1. Mendel's law of independent assortment states that during the formation of gametes, the segregation of alleles for one gene is independent of the segregation of alleles for another gene. 2. Siblings do not look exactly alike due to two main reasons: genetic variation and environmental influences.
However, this law can be violated in situations where genes are located close to each other on the same chromosome, a phenomenon known as genetic linkage.
When genes are physically close together on a chromosome, they are more likely to be inherited together as a unit, rather than independently assorting. This violates Mendel's principle of independent assortment.
Siblings do not look exactly alike due to two main reasons: genetic variation and environmental influences.
Firstly, siblings inherit a combination of genes from both parents, resulting in different genetic makeups. Even though they share common genetic material from their parents, the specific combinations of alleles inherited from each parent can vary, leading to differences in physical traits.
Additionally, siblings may also experience variations in gene expression, which can further contribute to differences in appearance.
Secondly, environmental factors, such as nutrition, lifestyle, and exposure to different experiences, can also impact the development and expression of traits, leading to variations among siblings.
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are trees producers?
Answers
FEMALE REPRODUCTIVE SYSTEM QUESTIONS: 1. Describe and give the functions of the different structures of the female reproductive system. 2. Name the hormones produced by the ovaries. Give their actions. 3. Explain briefly the phases of menstrual cycle. 4. Define: a. Menopause b. Mastectomy c. Salpingitis d. Ectopic pregnancy e. Hysterectomy f. Amenorrhea g. Dilatation and curettage
Answers
The female reproductive system is made up of the following structures; Ovaries, Fallopian tubes, Uterus, Cervix and Vagina.
What are the functions?Ovaries: The ovaries are two small, oval-shaped organs located in the pelvis. The ovaries produce eggs (ova) and hormones, including estrogen and progesterone.
Fallopian tubes: The fallopian tubes are two narrow tubes that connect the ovaries to the uterus. The fallopian tubes allow the eggs to travel from the ovaries to the uterus.
Uterus: The uterus is a muscular organ that is located in the pelvis. The uterus is where a fetus grows during pregnancy.
Cervix: The cervix is the narrow opening at the bottom of the uterus. The cervix connects the uterus to the vagina.
Vagina: The vagina is a muscular tube that connects the cervix to the outside of the body. The vagina is used for sexual intercourse and childbirth.
The functions of the female reproductive system include:
Producing eggs: The ovaries produce eggs (ova) on a monthly basis.
Producing hormones: The ovaries produce hormones, including estrogen and progesterone. Estrogen and progesterone are responsible for the development of secondary sex characteristics, such as breasts and hips, and for the regulation of the menstrual cycle.
Providing a place for a fetus to grow: The uterus provides a safe place for a fetus to grow during pregnancy.
Giving birth: The vagina is used for childbirth.
2. The ovaries produce the following hormones:
Estrogen: Estrogen is a hormone that is responsible for the development of secondary sex characteristics, such as breasts and hips, and for the regulation of the menstrual cycle.Progesterone: Progesterone is a hormone that prepares the uterus for pregnancy.3. The menstrual cycle is a monthly cycle of changes in the female reproductive system. The menstrual cycle is divided into four phases:
Menstruation: Menstruation is the shedding of the lining of the uterus. Menstruation usually lasts for 3-7 days.Follicular phase: The follicular phase is the phase of the menstrual cycle that begins after menstruation and ends with ovulation. During the follicular phase, an egg (ovum) matures in one of the ovaries.Ovulation: Ovulation is the release of an egg from an ovary. Ovulation usually occurs 14 days before the next menstrual period begins.Luteal phase: The luteal phase is the phase of the menstrual cycle that begins after ovulation and ends with menstruation. During the luteal phase, the ovary produces progesterone, which prepares the uterus for pregnancy.4. Definitions:
a. Menopause: Menopause is the natural cessation of menstruation. Menopause usually occurs between the ages of 45 and 55.
b. Mastectomy: Mastectomy is the surgical removal of one or both breasts. Mastectomy is often performed as a treatment for breast cancer.
c. Salpingitis: Salpingitis is an inflammation of the fallopian tubes. Salpingitis is often caused by a sexually transmitted infection (STI).
d. Ectopic pregnancy: Ectopic pregnancy is a pregnancy that occurs outside of the uterus. Ectopic pregnancies are often life-threatening.
e. Hysterectomy: Hysterectomy is the surgical removal of the uterus. Hysterectomy is often performed as a treatment for uterine fibroids, endometriosis, or heavy menstrual bleeding.
f. Amenorrhea: Amenorrhea is the absence of menstruation. Amenorrhea can be caused by a variety of factors, including pregnancy, menopause, and hormonal imbalances.
g. Dilatation and curettage (D&C): D&C is a medical procedure that is used to remove tissue from the uterus. D&C is often performed to diagnose or treat a medical condition, such as an abnormal uterine bleeding.
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Yeast causes faster rising than baking powder or baking
soda.
O True
O False
Answers
Answer:
true
Explanation:
if I'm wrong ok it's not my problem
what is meaning of hypertension
Answers
Hypertension refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.
High blood pressure, collectively known as hypertension, is a condition that occurs when the force of the blood cells against the walls of the arteries is too high.Hypertension increases the risk of suffering cardiovascular diseases such as coronary diseases.Hypertension usually is associated with excessively high levels of sodium in the diet.In conclusion, hypertension refers to the blood pressure that occurs when the force of the blood against the artery walls is excessively high.
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Dimensional analysis
Explain and justify your
process
1. [30 marks] Grizzly bears are an important species in the Yellowstone ecosystem and have been listed as a threatened species since 1975. Efforts to protect the Grizzly bear have seen an increase in
Answers
Dimensional analysis is a mathematical technique used to analyze and convert physical quantities by considering their units.
Dimensional analysis is a powerful tool used in science and engineering to understand and manipulate physical quantities.
It involves examining the dimensions or units of various quantities involved in a problem and using their relationships to derive new equations or convert between different units.
The process of dimensional analysis starts by identifying the relevant quantities involved in a problem and expressing them in terms of their base units (such as meters, seconds, kilograms, etc.).
Then, the dimensions or units of these quantities are compared and manipulated using algebraic operations such as multiplication, division, and cancellation.
The justification for using dimensional analysis lies in the principle of dimensional homogeneity. According to this principle, any valid equation must have the same dimensions on both sides.
By carefully considering the units, dimensional analysis allows us to check the consistency of equations, identify missing terms, derive conversion factors, or solve for unknown quantities.
Dimensional analysis is particularly useful in verifying equations, checking the correctness of derived formulas, and performing unit conversions.
It helps ensure that the mathematical relationships used to describe physical phenomena are consistent with the underlying physical principles and laws.
Additionally, it provides a systematic approach to solving problems and ensures that the final results have the correct dimensions and units, which is crucial for accurate and meaningful interpretation of scientific data.
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What kind of species can harm an ecosystem or human health when introduced into the new environment? A species whose introduction does or is likely to cause economic or environmental harm or harm to human health is a(n) species. These species are to the new environment.
Answers
This would be an invasive species which is not native to the environment. It can cause harm either because it over grows (if it's a plant.) Or if it's an animal, it will reproduce and most likely take over the environment. This is because it feels the need to compete for materials, but ends either taking most or all of it. Which then ruins the food chain depending on it's diet. If it's eating a plant, then other animals that eat that plant no longer have any food. And vice versa if it's feeding on animals. Other predators, no longer have their food.
How can you test the idea that solar energy is required for the reduction of NADP+ to NADPH?
Answers
Answer:
In addition to biology, evidence drawn from many different disciplines, including chemistry, geology, and mathematics, supports models of the origin of life on Earth. In order to determine when the first forms of life likely formed, the rate of radioactive decay can be used to determine the age of the oldest rocks (see optional problems C and D, below) exposed on Earth’s surface. These are found to be approximately 3.5 billion years old. The age of rocks can be correlated to fossils of the earliest forms of life. A. The graph compares times of divergence from the last common ancestor based on the fossil record with a "molecular time" constructed by comparing sequences of conserved proteins to determine a mutation rate (after Hedges and Kumar, Trends in Genetics, 2003). Explain how such a molecular clock could be refined to infer time or the evolution of prokaryotes. B. Using a molecular clock constructed from 32 conserved proteins, Hedges and colleagues (Battistuzzi et al., BMC Evol. Biol. 2004) estimated the times during which key biological processes evolved. A diagram based on their work is shown. Connect the time of the origin of life inferred from this diagram with the age of the oldest fossil stromatolites and the age of the oldest exposed rock to show how evidence from different scientific disciplines provides support for the concept of evolution. Evaluate the legitimacy of claims drawn from these different disciplines (biology, geology, and mathematics) regarding the origin of life on Earth. The oldest known rocks are exposed at three locations: Greenland, Australia, and Swaziland. The following application of mathematical methods provides essential evidence of the minimum age of Earth.
Explanation:
Which of the following is not an example of mechanical control of nonnative species?
a.
pulling
b.
inspections
c.
net barriers
d.
mowing
Answers
Answer:
it's A
Explanation:
Answer:
A. PULLING
Explanation:
Edg 2020
what is a tree doing when it is growing from the energy it receives from the sun?
Answers
Answer:
It's either Primary Growth, or Phototropism, depending on what exactly you're asking.
Explanation: