Answers
Answer:
Climate change is generally defined as a significant variation of average weather conditions—say, conditions becoming warmer, wetter, or drier—over several decades or more. It's the longer-term trend that differentiates climate change from natural weather variability.
Explanation:
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Related Questions
list not less than 8 differences between
Excretion in flowering plant and excretion
humans in a table form.
Answers
Answer:
Four differences between excretion in flowering plants and excretion in human are as follows.
(1) In a plant, oxygen is a by-product of excretion whereas, in animals, urea is produced.
(2) Plants do not have exclusive excretory organs while humans do have them.
(3) Plants tend to shed their parts while excreting while humans do not tend to shed their organs for the process.
(4) Some solid waste products of plants are stored in their dead cells whereas, in humans, all excretion product gets passed out of the body.
Explanation:
I hope this is correct ( Tried my best :D )
WHAT IS THE PRIMARY DIFFERENCE BETWEEN WATER-AND-FAT SOLUBLE HORMONES IN TERMS OF WHERE THEY WORK?a.water-soluble hormones bind to outside cells, whereas fat-soluble hormones enter cells and act thereb.water-soluble hormones enter the cells and act there, whereas fat-soluble hormones bind to the outside of the cellsc.both hormones carry out their actions at the same place on the celld.all of the above are correcte.none of the above are correct
Answers
Water soluble hormones, such as glycoproteins or peptide hormones, cannot cross the lipidic membrane. The cell receptors for this hormones are located on the surface of the cell membrane. So, this hormones have their main activity on the cell surface.
Fat soluble hormones, for example steroids (cortisol, testosterone, estrogen), can easilly pass through the cell membrane, the receptors for these hormones are found within the cell, in the cytoplasm and the nucleus. These hormones act directly by estimulating the transcription of DNA to produce determined proteins.
The correct option is a.
Plants can reproduce both sexually and asexually. What are some examples of sexual reproduction in plants? Select ALL that apply. Responses
Answers
Sexual reproduction in plants involves the fusion of male and female gametes to produce offspring with genetic diversity.
Mechanisms that facilitate sexual reproduction in plants are examples:
1)Pollination and Fertilization: Many plants rely on pollinators, such as bees, butterflies, or birds, to transfer pollen from the male reproductive structures (anthers) to the female reproductive structures (stigma) of flowers.
This process enables the fusion of sperm cells within the pollen with egg cells in the ovules, leading to fertilization.
Examples include flowering plants like roses, sunflowers, and apple trees.
2)Seed Production: After fertilization, the ovule develops into a seed. Seeds contain an embryo, formed by the fertilized egg, enclosed within a protective seed coat.
The mature seeds can disperse and germinate to give rise to new plants.
Various plant groups, including angiosperms (flowering plants) and gymnosperms (conifers and cycads), reproduce sexually through seed production.
3)Alternation of Generations: In plants with a complex life cycle, such as ferns, mosses, and liverworts, sexual reproduction involves an alternation between two distinct generations: the gametophyte and the sporophyte.
The gametophyte generation produces gametes (sperm and eggs) through specialized structures, while the fusion of gametes gives rise to the sporophyte generation, which produces spores.
4)Self-fertilization: Some plants have the ability to self-fertilize, where the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant.
This allows for sexual reproduction without the need for external pollinators. Self-fertilization can be seen in plants like tomatoes, peas, and certain grass species.
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What is the allele that determines the phenotype with respect to a particular gene?
A. Dominant allele
B. Recessive allele
C. Deleterious allele
D. Dominant trait
Answers
The allele that determines the phenotype with respect to a particular gene is the option A. dominant allele.
In genetics, alleles are alternate forms of a gene that occupy the same position (locus) on a chromosome. Each individual inherits two alleles for each gene, one from each parent. The interaction between these alleles determines the expression of the gene and ultimately the phenotype, which refers to the observable characteristics or traits of an organism.
A dominant allele is one that exerts its effect even if there is only one copy present in the individual's genotype. It masks the effect of the recessive allele, which is only expressed when two copies of the recessive allele are present.
When an individual possesses a dominant allele for a particular gene, it determines the phenotype associated with that gene. This means that the trait associated with the dominant allele will be expressed, regardless of whether the other allele in the pair is dominant or recessive. Therefore, the correct answer is option A.
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The altitude where the dewpoint equals the air temperature is called what?
Answers
Answer:
saturated
When the dew point temperature and air temperature are equal, the air is said to be saturated. Dew point temperature is NEVER GREATER than the air temperature. Therefore, if the air cools, moisture must be removed from the air and this is accomplished through condensation.
(not sure tho)
Which statement about the nervous system is true?
O A. It only exists in the brain.
B. It stores information.
C. It works just like electrical wires.
O D. It does not have control over slowing or speeding up your body.
Answers
Answer:
c
Explanation:
it would be c because the nervous system works just like electric wires
Why are cetacean are smarter than primates?
Answers
Answer:
well no duh we humans we smart and we invented half the stuff in the world
Explanation:
Answer:
Evolution and different environments.
Explanation:
Primates are intelligent in their own ways, such as motor control, the use of hands and feet simultaneously, control of both hands for different things at the same time.
Dolphins for example, however, they lack the limbs that primates do, so they don't need motor control as much as primates. They evolved to be very social animals, and that allows them to excel in groups while maintaining a pattern seeking brain much like primates, without the motor control capabilities.
Pretend you are a biologist analyzing mutations occurring in the DNA of an endangered species. In three to five sentences, describe what changes you are analyzing in an animal and how they are impacting its survival (either positively or negatively). Explain how you would determine that the mutations were new mutations rather than solidified traits. Additionally, describe how biologists might use this analysis to promote the survival of the species.
Answers
Answer:
The biologist is analyzing deleterious and beneficial mutations.
Explanation:
In general, mutations are deleterious genetic changes that negatively affect the fitness of the individual in a particular environment. However, there are occasions where a mutation may be beneficial. These mutations are beneficial because they confer an adaptive advantage (for example, by generating new versions of proteins) that enable the individual to adapt to their environment, thereby increasing their chances to survive and reproduce. If a beneficial mutation is new it will be distributed disproportionately among populations, thereby it is possible to determine the novelty by determining the frequency of the mutation among populations. Ideally, this new mutation should have a value of 0 in the non-target populations (i.e., this mutation does not exist in these populations), and a very low value in the target population (i.e., this mutation appeared very recently). Since mutations provide the raw material for natural selection, it is expected that a new mutation increases their frequency in the population, but if this genetic change is deleterious in a particular environment, natural selection will decrease their frequency. Deleterious mutations are accumulated in populations with small sizes faster than it can eliminate them, thereby the identification of these genetic changes can result useful for the design of conservation strategies in endangered species.
Question 9 (2 points) What effect did the Dillingham report have on the American public? A. It prepared public opinion to support new laws that would bring about an end to most immigration. B. It caused many Americans to change their views and attitudes toward immigrants. B. It resulted in the Melting Pot theory, which supported the idea that all Americans should be the same. D. It had little, if any, effect on the American public.
Answers
The effect that the Dillingham report had on the American public was It prepared public opinion to support new laws that would bring about an end to most immigration. Option A
What is the Dillingham report?Generally, The Dillingham report, also known as the "Dillingham Commission," was a study conducted by the United States Congress in the early 20th century to examine the impact of immigration on the country.
The report, which was released in 1911, contained numerous recommendations for immigration policy, including the implementation of a literacy test and other measures to limit the number of immigrants coming to the United States.
The report had a significant impact on the American public, as it prepared public opinion to support new laws that would bring about an end to most immigration. Many Americans supported these measures, viewing immigration as a threat to the country's social, economic, and political stability.
As a result, the report played a key role in shaping immigration policy in the United States for many years to come.
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As you begin to go from a waking state to a sleep state, your brain activity changes from
Answers
As you begin to go from a waking state to a sleep state, your brain activity changes from more active to less active.
What happens to brain activity during sleep?Most brain neurons stops all activity during sleep condition. Nerve cells in the brainstem release neurotransmitters which include norepinephrine, histamine, and serotonin. These neurotransmitters is responsible for making the brain to be alert and working well when you are not at sleep means awake. The brain stem that is present at the base of the brain, communicates with the hypothalamus in order to control the transitions between wake and sleep. We know that the brain stem includes the structures of pons, medulla, and midbrain. So we can say that pons, medulla, and midbrain also control the the brain activity during sleep and awake.
So we can conclude that when you begin to go from a waking state to a sleep state, your brain activity changes from more active to less active.
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Stroma consists of what?
Answers
1. Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased, Which of the following describes a necessary condition for thesechanges in the finch populations to occur?
Answers
Answer:
A necessary condition for the changes in the finch populations to occur in response to the drier climate would be:
- Variation in beak shape within the initial population: There must have been existing genetic variation in the population of finches regarding beak shape. Some finches would have had the beak shape that provided an advantage in obtaining food resources in the drier climate, while others would have had different beak shapes.
Without this initial variation in beak shape, there would be no opportunity for natural selection to act and favor individuals with the advantageous beak shape. Therefore, the presence of genetic variation within the population is necessary for the changes in the finch populations to occur.
Based on the theory of natural selection, the necessary condition for the changes in the finch populations to occur is limited food resources. Option B
What does natural selection say?Natural selection is the process by which populations of living organisms adapt and change over time.
Natural selection occurs when there is variation within a population of a species, and some individuals are better able to survive and reproduce than others.
These individuals are more likely to pass on their genes to the next generation, and the population will gradually change over time.
The above answer is based on the full question below;
Over time, the climate of an island became drier, which resulted in changes to the populations of various island finch species. Finch populations with a certain beak shape thrived, while those not having that beak shape decreased, Which of the following describes a necessary condition for these changes in the finch populations to occur?
A. fewer mutations B. limited food resources C. limited beak variations D. overproduction of offspring
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What is the ratio of hydrogen and oxygen in all carbohydrates when compare to carbon ____hydrogen: _____oxygen
Can anyone tell me this ?
Answers
Answer:
n(C1H2O1)
Explanation:
Think of glucose, which is C6H12O6. In the case of glucose, n would be 6.
Most articles pass right through the atom, this means that most of the atom is
Answers
Most articles pass right through the atom, this means that most of the atom is an empty space.
What is an atom?An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.
Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.
As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.
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When the concentration of molecules is the same throughout the space the molecules
occupy, the molecules are in
Answers
Explanation:
Diffusion will eventually cause the concentration of molecules to be the same throughout the space the molecules occupy, when they will be in equilibrium.
The picture below represents an oxygen atom.
How many protons does this
atom
have?
Answers
Hope this answers your question
The number of protons in this atom of oxygen is 8. Thus, the correct option is A.
What are Protons?Protons may be defined as stable subatomic particles present in the nucleus of every atom. It is positively charged in nature.
The number of protons of an atom is equal to its atomic number. Oxygen has an atomic number of 8, which means the number of protons is equal to 8 as well.
Therefore, it is well described above.
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plant reproduction requires the presence of auxins, as well as a large amount of sugar for energy. which two main plant tissues work together to release sugar and carry hormones so that reproduction can take place?
Answers
Answer:
The two main plant tissue that works together to release sugar and carry hormones so that reproduction can take place are: The ground and the vascular tissue.
Explanation:
The two main plant tissues that work together to release sugar and carry hormones so that reproduction can take place are Xylem and phloem.
What do you mean by Hormones?Hormones may be defined as a chemical delivered by endocrine glands and discharged into the blood and fascinated to a distantly located target organ.
Xylem is responsible for the transportation of water from the ground to the stem via roots, while phloem, the vascular tissue responsible for the transportation of dissolved sugar from the leaves to the other parts of the plants.
Therefore, it is well described above.
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What are the stages of bee development (eggs,larvae,pupae)
Answers
The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.
The stages of bee development are:
1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.
2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.
3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.
4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.
It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.
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Water and the Earth 1:Question 3
In the water cycle, gravity is a factor that pulls things down. Which of
these processes in the water cycle is helped by gravity?
Select one:
O
Condensation
O
Transpiration
O
Runoff
O
Evaporation
Answers
Answer:
Runoff
Explanation:
The other answers involve the water particles rising to the clouds. So those processes work against gravity and not with it. Runoff uses gravity to flow back into the ocean or large body’s of water.
what satellites are used to study expanses of the oceans surface
Answers
Answer:
The Geostationary Operational Environmental Satellite-16 (GOES-16) is the first of NOAA's next generation of geostationary weather satellites. Among the many missions of this satellite, it will collect ocean and climate data.
Explanation:
Using satellites, NOAA researchers closely study the ocean. Information gathered by satellites can tell us about ocean bathymetry, sea surface temperature, ocean color, coral reefs, and sea and lake ice. Scientists also use data collection systems on satellites to relay signals from transmitters on the ground to researchers in the field—used in applications such as measuring tidal heights and the migration of whales. Transmitters on satellites also relay position information from emergency beacons to help save lives when people are in distress on boats, airplanes, or in remote areas.
Answer:
A b c d?
Explanation:
You decided to splurge after eating a large dinner by consuming 2 Krispy Kreme donuts. The sugar in your cells is already high from the dinner you ate earlier, but your cells still need to take in the sugar from your blood which is lower. The receptors on your body cells get a message to open a channel in the membrane and allow the sugar into the cell. In which direction will the water move with respect to the cell: either inside the body cell or outside the body cell. EXPLAIN why ENERGY is required for this type of transport, and WHY a protein receptor on the membrane is needed.
Answers
Answer:
ive never had krispy kreme donuts or starbucks
Explanation:
A portable electric hairdryer with a resistance of 15 ohms is connected to a 120 V outlet. What is the approximate current
in the circuit?
A.8А
B.15 A
C.180 A
D.105 A
Answers
Hopefully it helps
Which of the following are compounds? (Choose all that apply.)
Oxygen gas (O2)
Water
A chain of carbon atoms
Hydrogen gas (H2)
Organic biological molecules
Sodium chloride
Glucose
Answers
Answer:
Water, organic biological molecules, sodium chloride, glucose.
Explanation:
A compound is anything composed of two or more separate elements.
O2 and H2 are a singular elements, and a chain of carbon atoms is multiple of the same element, so these are not considered compounds.Sodium chloride is sodium and chlorine, and water is oxygen and hydrogen. Glucose is a compound of sugar, and organic biological (or biomolecules) are made up of carbon and hydrogen, so these are all considered compoundsI hope this helps! Happy learning, friend :)
Some examples of chemical compounds are water molecule, organic biological molecules, sodium chloride, and glucose molecule. Thus, the correct options are B, E, F, and G.
What are compounds?A chemical compound is a chemical substance which is composed of many identical molecules that contain atoms from more than one chemical element which are held together in place through chemical bonds. A molecule consisting of atoms of only one element is therefore not a compound.
Some examples of chemical compounds are water, organic biological molecules, sodium chloride, and glucose.
Therefore, the correct options are B, E, F, and G.
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Which type of weather do anticyclones bring?
Answers
Answer:
i think anticyclone weather bring us lots of cold weather and snow
Answer:
Anti cyclone bring us very cold, crisp bright winter days and warm sunny summer weather.
Explanation:
Inventions Promote Change
4. How did the harnessing of electricity transform American business?
Answers
Around 1900, organizational and technological advancements in electricity sparked a new industrial revolution. The appearance of enterprises and cities was altered by electrical illumination and motors.
Businesses were able to expand their locations and increase their productivity thanks to centrally produced electricity. These accomplishments depended on the development of massive interconnected systems, most of which were monopolies controlled by corporations.
Before the war, the electricity business grew slowly, but in the 1920s it truly took off and played a significant role in the economic growth.
It offered factories a low-cost, effective source of power. It allowed for the simultaneous use of numerous sophisticated machines, paving the way for the development of mass production methods.
Because it provided the power required in consumers' homes for the new mass-produced goods, such as vacuum cleaners, refrigerators, and washing machines, electricity also contributed to the economic boom.
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Match the following term with its definition.
Answers
Pigment – A colored material added to glass or paint.
Becke line – A halo
Backscatter – Fragments of glass left on the entrance side of an impact.
Refractive index – A measure of how light bends as it passes from one substance to another.
Refractive index (Index of Refraction) is a number determined by dividing the speed of light in a vacuum by the speed of light in a second medium with a higher density.
An optical mineralogy method called the Becke line test can be used to compare the relative refractive indices of two materials. The petrographic microscope's stage is lowered, and the direction in which the light seems to move is watched.
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The body of a slime mold that flows over a rotten log appears to lack any partitioning into distinct cells; however it does become cellular when it changes form and produces spores. The surfaces of parasitic flatworms and some insect tissues are "syncytial" layers of living material that developed from a single cell but now contains many nuclei but lack partitioning by cell membranes. These tissues actively consume food and produce wastes. Considering that the cell theory states that "all living things are composed of cells," then:_______.a. these tissues are not living because they violate the cell theory.b. this proves some vital force is involved beyond normal cell structures in order to give life to living organisms.c. these tissues are obviously a bridge between nonliving and primitive living cells.d. the general concept of life-is-cellular still holds since sometime in their life these organisms still utilize cells, but this shows cell membranes can be abandoned.e. all of the above are true.
Answers
Answer:
The correct answer is : option D.
Explanation:
The given example of the slime mold that flows on a rotten log and the parasitic flatworms and other insects shows no cellular distinction as they lack true partitioning in between their cells of the body. These organisms (insects and parasitic flatworm) have syncytial tissues but lack cell membranes.
All these organisms still follow the rules of cell theory as they are made up of cells and rise from pre-existing cells and all cells of an organism are similar to one other. However, it is not necessary to have a cell membrane and it can be abandoned.
Thus, the correct answer is : option D.
What allows enormous lengths of DNA to
be folded inside the nucleus and prevents
chromatin from becoming tangled
during mitosis?
A. chromosome
B. ribosome
C. centrioles
D. nucleosome
Answers
Answer:
D
Explanation:
write it in your own words
Why is it important to know there are good and bad bacteria?
Answers
Some protists can reproduce both sexually and asexually. What's a major advantage of each?
A. Sexual reproduction increases genetic diversity, and asexual reproduction can be more rapid.
B. Sexual reproduction allows the organism to produce an exact copy of itself, and asexual reproduction can be more rapid.
C. Sexual reproduction can be more rapid, and asexual reproduction allows the organism to produce an exact copy of itself.
D. Sexual reproduction is less prone to making genetic mutations, and asexual reproduction increases genetic diversity.
Answers
Asexual reproduction has the potential for faster growth, while sexual reproduction enhances genetic diversity. In protists, sexual reproduction has the major benefit of increasing genetic.
How do protozoa reproduce both sexily and asexually?While some protists reproduce sexually using gametes, others do so asexually using binary fission. Plasmodium falciparum, which possesses both sexual and asexual variants of the organism, is an excellent illustration of a species with incredibly complex life cycles.
What is the benefit of sexual and asexual reproduction?Both approaches have benefits. A varied gene pool that can tolerate a dynamic and changing environment can be developed through sexual reproduction. Asexual reproduction is advantageous for maintaining a big, homogenous population and for species that can't move around.
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