6. During which type of reproduction can a single organism reproduce
without help from another? (sexual, asexual).
Answers
Answer:
Asexual
Explanation:
Remember, the suffix "A-" means "Non-" so asexual (or "nonsexual") would only need one organism.
Related Questions
Complete each sentence below by selecting the type of muscle cell that performs the function described. Are used to help the heart beat and pump blood. Are used in the digestion of food. Are involved in movements of the skeleton (bones).
Answers
The following types of muscle cells perform the functions described below:Skeletal muscles are involved in movements of the skeleton (bones).
Smooth muscles are used in the digestion of food.Cardiac muscles are used to help the heart beat and pump blood.What are skeletal muscles?Skeletal muscles are a type of muscle tissue that is attached to the bones of the skeleton. These muscles are responsible for the movement of the bones, which is why they are sometimes referred to as "voluntary" muscles because they are under conscious control.
What are smooth muscles?Smooth muscles are involuntary muscle tissues that are found in the walls of internal organs such as the stomach, intestines, and blood vessels. These muscles help move food and other materials through the digestive system.What are cardiac muscles?
Cardiac muscles are the muscles that make up the walls of the heart. These muscles work together to help the heart beat and pump blood throughout the body. Unlike skeletal and smooth muscles, cardiac muscles are involuntary, meaning they are not under conscious control.
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What type of Recourses are derived from nonliving things of the environment like rocks minerals mountains gases etc.
Answers
Answer:
Inorganic renewable resources come from non-living things such as the water, sun, and wind. Non-renewable resources cannot be easily replaced once they are destroyed. Examples of these resources include fossil fuels such as coal, petroleum, oil, and natural gas.
hope this answered your question!
The resources derived from nonliving things in the environment, such as rocks, minerals, mountains, and gases, are known as abiotic resources or nonrenewable resources. These resources are derived from natural sources.
What is a Resource?
A resource is a physical material that people value and need, including air, water, and land. Resources are classified into two types: renewable and nonrenewable. Timber, wind, and solar power are examples of renewable resources, whereas coal and natural gas are examples of non-renewable resources.
Non-renewable resources include gases like nitrogen, oxygen, and carbon dioxide, which are very useful for the atmosphere and for life on Earth. Rocks and minerals are the foundation materials for iron ore, copper, gold, and diamonds. They are used in construction, manufacturing, and the production of various goods. Mountains provide resources like coal, oil, and natural gas, which are crucial for energy production.
Abiotic resources are available in very particular amounts and are non-renewable and their extraction causes various environmental impacts. So, the conservation and management of these resources are helpful in the maintenance of the environment.
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What age do Moro and grasp reflexes stop
Answers
Moro reflex stops after 2 months while Palmar Grasp reflex stops after 5-6 months and Plantar Grasp stops after 9-12 months.
Numerous reflexes are visible during birth, including the Moro reflex. After three to four months, it usually disappears. When a baby is shocked or feels like they are falling, a reflex known as the Moro reflex occurs naturally.
The neurological examination of newborns includes a standard check for the Palmar grasp reflex. It can help in the diagnosis of some illnesses, such as cerebral palsy or peripheral nerve damage, even if its only phylogenetic role is involved.
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Match the terms to their definition.
1 .
an animal or insect that is known to transmit a specific disease
immunization
2 .
vaccination, artificially stimulating antibodies to a disease
leukocyte
3 .
white blood cell
pathogenic
4 .
producing disease
vector
Answers
To understand how vaccines work, it helps to first look at how the body fights illness. When germs, such as bacteria or viruses, invade the body, they attack and multiply. This invasion, called an infection, is what causes disease. The immune system uses your white blood cells to fight infection. These white blood cells consist primarily of macrophages, B-lymphocytes and T-lymphocytes:
Macrophages are white blood cells that swallow up and digest germs, plus dead or dying cells. The macrophages leave behind parts of the invading germs called antigens. The body identifies antigens as dangerous and stimulates antibodies to attack them.
B-lymphocytes are defensive white blood cells; they can produce antibodies to fight off infection.
T-lymphocytes are another type of defensive white blood cell, that recognizes a familiar germ, if the body is exposed again to the same disease
The first time the body is infected with a certain germ, it can take several days for the immune system to make and use all the tools needed to fight the infection. After the infection, the immune system remembers what it learned about how to protect the body against that disease. If your body encounters the same germ again, the T-lymphocytes recognize the familiar germ and the B-lymphocytes can produce antibodies to fight off infection.
How Vaccines Work
Vaccines can help protect against certain diseases by imitating an infection. This type of imitation infection, helps teach the immune system how to fight off a future infection. Sometimes, after getting a vaccine, the imitation infection can cause minor symptoms, such as fever. Such minor symptoms are normal and should be expected as the body builds immunity.
Once the vaccinated body is left with a supply of T-lymphocytes and B-lymphocytes that will remember how to fight that disease. However, it typically takes a few weeks for the body to produce T-lymphocytes and B-lymphocytes after vaccination. Therefore, it is possible that a person infected with a disease just before or just after vaccination could develop symptoms and get that disease, because the vaccine has not had enough time to provide protection. While vaccines are the safest way to protect a person from a disease, no vaccine is perfect. It is possible to get a disease even when vaccinated, but the person is less likely to become seriously ill.
Types of Vaccines
Scientists take many approaches to developing vaccines. These approaches are based on information about the diseases the vaccine will prevent, such as how germs infect cells, how the immune system responds to it, regions of the world where the vaccine would be used, the strain of a virus or bacteria and environmental conditions. Today there are five main types of vaccines that infants and young children receive in the U.S.:
Live, attenuated vaccines fight viruses and bacteria. These vaccines contain a version of the living virus or bacteria that has been weakened so that it does not cause serious disease in people with healthy immune systems. Because live, attenuated vaccines are the closest thing to a natural infection, they are good teachers for the immune system. Examples of live, attenuated vaccines include measles, mumps, and rubella vaccine (MMR) and varicella (chickenpox) vaccine. Even though they are very effective, not everyone can receive these vaccines. Children with weakened immune systems—for example, those who are undergoing chemotherapy—cannot get live vaccines.
Non-live vaccines also fight viruses and bacteria. These vaccines are made by inactivating, or killing, the germ during the process of making the vaccine. The inactivated polio vaccine is an example of this type of vaccine. Often, multiple doses are necessary to build up and/or maintain immunity.
Toxoid vaccines prevent diseases caused by bacteria that produce toxins (poisons) in the body. In the process of making these vaccines, the toxins are weakened so they cannot cause illness. Weakened toxins are called toxoids. When the immune system receives a vaccine containing a toxoid, it learns how to fight off the natural toxin. The DTaP vaccine contains diphtheria and tetanus toxoids.
Subunit vaccines include only parts of the virus or bacteria, or subunits, instead of the entire germ. Because these vaccines contain only the essential antigens and not all the other molecules that make up the germ, side effects are less common. The pertussis (whooping cough) component of the DTaP vaccine is an example of a subunit vaccine.
Conjugate vaccines fight a type of bacteria that has antigens. These bacteria have antigens with an outer coating of
what are some advantages of freshwater clams producing parasitic larvae that attach to the gills of fish?
Answers
The advantages of freshwater clams producing parasitic larvae that attach to the gills of fish is the distribution of larvae to distant places which was not possible in normal condition.
The larvae are the developmental stage in the growth of Pisces/ amphibians and reptiles. Freshwater clams are filter feeders that are burrowed deep beneath the sand and extend their siphons through the sand to filter water into their bodies and extract oxygen and nutrients. They eat tiny debris from the sand. The parasitic larvae get the nutrition from the places where the fishes feed and they get distributed as they grow up while travelling. It is a part that nature has devised to maintain their population and also save them from some predatory organism found underwater. Clams are considered as nutritional marine food in many nations mainly the Eastern nation.
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Mount Pinatubo ejected large volumes of gas and ash into the atmosphere during its eruption in June 1991. Scientists measured an average global temperature decline of about 2% during the next year. if the average temperature of an area was 25*C prior to the eruption what was the temperature the next year?
Answers
Following the Pinatubo explosion, the region's average temperature would be about 24.5°C.
What is a region?Areas are utilised in a variety of disciplines, including geography, physics, engineering, and architecture. In these sectors, the term "area" refers to the size of a surface, such as a building's floor area or a three-dimensional object's surface area.
The size of an object with three dimensions or the pace of change of an equation in mathematics can both be calculated using areas. A region's or surface's size in two dimensions is expressed as an area. Usually, it is expressed in square units like square metres or square feet.
The extent of a region or shape.
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Which of the the following energyie ource produce the leat harmful envirmental effect
Answers
Geothermal energy is one of the least harmful to the environment
What is geothermal energy?
The thermal energy produced and kept in the Earth's crust is known as geothermal energy. The ongoing nuclear fusion process keeps the Earth's core at a temperature that is roughly consistent with that of the Sun. Some rocks melt under the intense heat and pressure, which causes the mantle to rise (as they become lighter with the heat). These molten rocks that were created in the crust of the Earth are propelled upward where they become trapped in certain areas known as "hot spots." Steam is produced when the hot point makes contact with subterranean water. This hot water-formed area occasionally has surface outlets. Hot springs are where this hot water bursts from these sources.
According to the question:
Geothermal energy is a clean form of energy, making it one of the least damaging to the environment. It can be utilized in an emergency and won't run out of water because it consumes water continuously.
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Which of the following can limit the growth of a population of organisms
Answers
Answer:
-lack of food in the area
-more predators
-envirment changes
-over population
Explanation:
Refer to the illustration above. The cell uses structure 3
Answers
hi, i think you forgot to add your illustration...
Question 11 of 15
What is true about ice and liquid water?
A. Ice has a higher density than liquid water because it has more
space between molecules.
B. Ice has a higher density than liquid water because it has less
space between molecules.
C. Ice has a lower density than liquid water because it has less space
between molecules.
D. Ice has a lower density than liquid water because it has more
space between molecules.
Answers
Answer:Ice has a lower density than liquid water because it has more space between molecules. Therefore, the correct answer is D.
Explanation:
When water freezes into ice, its molecules arrange themselves into a crystal lattice structure, which causes the molecules to be spaced farther apart than they are in liquid water. This means that ice has a lower density than liquid water, which is why ice floats on top of liquid water. When water freezes, the molecules lose some of their kinetic energy, causing them to lock into a more rigid structure, which takes up more space. In contrast, liquid water has more kinetic energy, which allows the molecules to move more freely and take up less space.
which structure is highlighted?coccygeal regionthoracic regioncervical regionlumbar regionsacral region
Answers
The mentioned regions include the coccygeal (tailbone), thoracic (upper back), cervical (neck), lumbar (lower back), and sacral (between hips) regions.
These are all parts of the vertebral column, also known as the spinal column or backbone.
1. Coccygeal region: This region consists of the coccyx or tailbone, which is the small triangular bone at the base of the spine. It is the remnant of a vestigial tail in humans.
2. Thoracic region: This region consists of 12 thoracic vertebrae located in the upper back, where the ribs attach. They support the ribcage and protect the heart and lungs.
3. Cervical region: This region consists of 7 cervical vertebrae located in the neck. They provide support and flexibility to the neck and protect the spinal cord.
4. Lumbar region: This region consists of 5 lumbar vertebrae in the lower back, providing support to the weight of the upper body and allowing for movements such as bending and twisting.
5. Sacral region: This region consists of the sacrum, a large triangular bone located between the two hip bones. It connects the spine to the pelvis and supports the weight of the body while standing or walking.
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Factors that affect prenatal development
Genetic (a dominant trait)
Factor:
Genetic (a recessive trait)
Factor:
Genetic (a genetic or chromosomal disorder)
Factor:
Environmental (mother's physical health)
Factor:
Environmental (mother's emotional health)
Factor:
Environmental (something in the environment
that the mother lives in)
Factor:
How do these factors have a positive or negative affect?
Answers
All the factors mentioned like environment factors, mother's physical and emotional health all can have either positive or negative effect.
What is factor and how come these factors have an effect on mother's health?Factors are in pair present on chromosomes , have studied in genetics. There are two factors for each trait.The statement that factors are present in pair have a significant role and need to be kept in mind vividly.Here comes the health of the mother which can be effected by emotion health, if mother is suffering with emotional challenges then obviously its a negative effect .When mother is living in a hygienic environment and friendly environment that's a positive impact.To know more about Factors visit:
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decibel is a measurement of the amount of pollutionTrue/False ?
Answers
The given statement "decibel is a measurement of the amount of pollution" is False because Decibel is a unit of measurement for describing the ratio of two physical quantities, often acoustic or electric power, or for quantifying the relative loudness of sounds..
A decibel (dB) is a unit of measurement used to express the intensity or level of sound, not pollution. It is a logarithmic scale that compares the intensity of a sound to a reference level, typically the threshold of human hearing. The higher the decibel level, the louder the sound.
Pollution, on the other hand, refers to the presence or introduction into the environment of substances or energy that cause harm or discomfort to living organisms. Pollution can take many forms, such as air pollution, water pollution, and soil pollution, and is typically measured using different units of measurement depending on the type of pollution.
Therefore, while decibels can be used to measure the intensity of noise pollution, they are not a direct measure of pollution itself.
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A healthy lifestyle is important because
A) people cannot control their genetic traits
B) lifestyle choices are the most important factor in disease prevention
C) unhealthy lifestyles lead directly to toxic environments
D) all of the above
Answers
Answer:
C
Explanation:
If your not carefull who you're around you can get hurt or i dont known how to explain it
Answer:
A
Explanation:
List the six characteristics of all living.
Answers
Answer:
1.)Responds to enviorment
2.)Produce offspring
3.)Grows
4.)Maintains homeostasis
5.)Contains cells
6.)Has complex chemistry
Characteristics as in what is living : plants, animals, cells, humans, bugs, hair
Characteristics as in what you need to live : food, water, shelter, oxygen, trees(for oxygen), gravity
directed evolution of an improved aminoacyl-trna synthetase for incorporation of l-3,4-dihydroxyphenylalanine (l-dopa)
Answers
Directed evolution was used to improve an aminoacyl-tRNA synthetase (ARS) for incorporating l-DOPA, a precursor to dopamine. Variants of ARS were generated, and those with enhanced activity in l-DOPA.
Incorporation were selected through multiple rounds of screening and mutation. This iterative process allowed the evolution of an ARS enzyme with improved specificity and efficiency for l-DOPA, enabling its efficient incorporation into proteins for various applications, such as protein engineering or drug delivery.Directed evolution is a laboratory technique used to enhance the properties of enzymes, such as aminoacyl-tRNA synthetases (ARS), which play a crucial role in protein synthesis. In this case, the goal was to improve an ARS specifically for the incorporation of l-3,4-dihydroxyphenylalanine (l-DOPA), a compound used in the production of dopamine.
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is the dreadd agonist clozapine n oxide reverse-metabolized to clozapine and produces clozapine-like interoceptive stimulus effects in rats and mice?
Answers
CNO is indeed reverse-metabolized to clozapine in both rats and mice, and that doses of CNO commonly used by the scientific community to activate DREADDs are capable of producing an interoceptive stimulus similar to that produced by its parent compound, clozapine.
For human muscarinic engineered receptors, also known as Designer receptors activated by designer drugs (DREADD), clozapine N-oxide is a synthetic ligand. binds to and turns on the hM3Dq and hM4Di DREADDs in both vitro and vivo.
Clozapine-N-oxide (CNO) activates DREADDs based on the human muscarinic (hM) receptor, whereas Salvinorin B (SalB) activates DREADDs based on the kappa opioid receptor (KOR). CNO inhibits hM4Di-expressing neurons while causing hM3Dq-expressing neurons to fire in bursts.
The circuitry and cellular signals that define behavior, perceptions, emotions, innate drives, and motor functions in species ranging from flies to nonhuman primates are now frequently identified by neuroscientists using chemogenetic tools based on DREADD.
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a mother whose blood type is a, mn, rh- has a child who tests ab, mn, rh- . in a paternity test using these results, the following 5 fathers were genotyped. which ones could be the father (check any and all that are possible)?
Answers
The mother has blood type A, MN, and Rh-. The child has blood type AB, MN, Rh-. To determine which of the genotyped potential fathers could be the biological father, we will analyze their blood types and the resulting possibilities for the child.
The child's blood type is AB, which means one parent must have A and the other parent must have B. The mother has A, so the father must have B or AB. Additionally, the child has MN blood type, which means both parents must have M and N genes. The mother has MN, so the father must also have MN. Finally, the child is Rh-, which means both parents must have Rh- genes. The mother is Rh-, so the father must also be Rh-. In conclusion, the potential father must have a blood type B or AB, MN, and Rh-. Check the genotyped fathers' blood types for these characteristics to determine which ones could be the biological father.
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Which gas is the most abundant in Earth’s atmosphere?(1 point)
Responses
nitrogen
nitrogen
carbon monoxide
carbon monoxide
carbon dioxide
carbon dioxide
oxygen
Answers
Nitrogen is referred to as the gas which is the most abundant in Earth’s atmosphere and is denoted as option A.
What is Atmosphere?These refers to the layer of gases which envelop the planet. This part of the earth has different gases such as carbon dioxide . oxygen etc. It is important as it is used by living organisms for their various forms of metabolic reactions.
However, the most abundant of the gases present in the atmosphere is nitrogen which is used for various reasons by humans and other living organisms and is therefore the reason why option A was chosen.
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1-What are the main human impacts on the environments and propose microbiological solutions to reduce such impacts on the environment in details. (25 points) 2-How can microorganisms get adapted to th
Answers
Answer:
Explanation:
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water. These negative impacts can affect human behavior and can prompt mass migrations or battles over clean water.
21. What is genetic drift?
a. Random change in population number
b. Random change in the amount of DNA in a population
c. A method of determining the relative age of a population
d. Random change in the allele frequency of a population
e. How scientists determine if two organisms are related
Answers
B.
Genetic drift is the change in the frequency of an existing gene variant in a population due to random sampling of organisms.
If a tongue cell in an alligator has 18 chromosomes, how many chromosomes will be found in its sperm cells?
Answers
Answer:
9 chromosomes - haploid number of chromosomes , half of a diploid number.
what happens when a seedling is left in water with darkness
Answers
Answer:
It would eventually die
Explanation:
It would eventually die because it makes food through photosynthesis and without light no photosynthesis can be made. Therefore it would start to lose its green pigment because no chlorophyll is being made.
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a muscle fiber is what level of organization in the body?
Answers
A muscle fiber is a CELLULAR level of organization in the body. A muscle fiber is a single muscle cell.
A muscle fiber consists of myofibrils, which are in turn composed of a series of sarcomeres linked in linear order.
The sarcomere represents the functional unit of muscle fiber cells.
Each bundle of muscle fibers is known as fasciculus.
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A scientist is observing an organism under the microscope. The organism was found in salt water, is multicellular, and its cells do not have nuclei. What is most likely true about the organism based on this information?
Answers
Answer:
I think the options should be:
It is a protist because it is microscopic.
It is not a protist because its cells do not have nuclei.
It is not a protist because it is multicellular.
It is a protist because it is found in salt water.
If correct, then the answer is option B
Explanation:
The above information about the organism can confirm that the organism is not a protist because it does not possess nuclei. It could be a prokaryote but these are not multicellular but can only be under the condition that maybe each prokaryotic cell aggregates and exist as a colony.
Answer:
the answer is its a protis bc its microscopic .
Explanation:
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What type of molecule is used to cut genes from a DNA of an organism
Answers
Answer:
It is restriction enzymes
Explanation:
Erwin Chargaff's work on the composition of nucleic acids began in 1944. His findings, which later became known as Chargaff's rules, detail the specific pairings that occur in double-stranded DNA molecules.
According to one of Chargaff's rules, a section of DNA molecule that contains 50 base pairs and has 15 adenine bases must also contain -
A. 15 guanine bases
B. 15 cytosine bases
C. 15 thymine bases
D. 15 uracil bases
Answers
Answer:
C: 15 thyme based
Explanation:
DNA molecule
A=T
Chargaff's rule of base pairing is an important rule for DNA nucleotide sequencing and is crucial in genetics. He gave the most important rules in his findings of the nucleotide base pairing.
DNA molecule that contains 50 base pairs and has 15 adenine bases must also contain option C. 15 thymine bases.
The bases can be explained as:According to Chargaff, bases containing purine and pyrimidine should be in 1:1 proportionate universally.The number of purine adenine would be equal to pyrimidine thymine and purine guanine would be equal to pyrimidine cytosine in a DNA sequence.Therefore, 15 adenine will base pair with 15 thymine bases.
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Which of the following statements about a woodland describes a
community?
A. All the oak trees
B. All the plants
C. All the oak trees and blackbirds
D. All the plants and animals
Answers
Answer:
Option D
Explanation:
All the plants and animals
Mutations have the potential to affect the genetic makeup of a population, Typically, mutations
Answers
Mutations have the potential to affect the genetic makeup of a population. True
Mutations are modifications to an organism's DNA that can be passed on further to the children. Both heritable and non-heritable mutations exist. An egg or sperm cell mutation has the potential to be passed down to the next generation and may have an effect on the genetic make-up of a population.
The accumulation of mutations within a population can lead to the development of genetic variety over time, and this genetic diversity can act as the foundation for natural selection-based evolution. A mutation may affect an organism in a variety of ways, from being neutral or even advantageous to destructive or fatal.
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Complete Question:
Mutations have the potential to affect the genetic makeup of a population. True/ False
one result of the ability of organisms to detect and appropriately respond to stimuli is
Answers
Option B: An organism's capacity for detecting and responding to stimuli is crucial to its capacity for survival, reproduction, and long-term evolution and adaptation.
The ability to detect and sense any stimulus is known as sensitivity. Having the capacity to recognize and react to stimuli, organisms can:
Avoid danger: When an organism detects a threat, it may react by running away or taking other protective steps.Find food: Living things have the ability to recognize food sources and will seek them out in order to eat them.Reproduce: When an organism detects a possible partner, it may act in ways that encourage reproduction.Organisms have the ability to sense changes in their environment and adapt by modifying their behavior or physiology to better withstand the new circumstances.
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Complete question:
one result of the ability of organisms to detect and appropriately respond to stimuli is
(a) Excretion.
(b) Sensitivity.
(c) Nutrition.
(d) Irritability.