Answers
Answer:
you i need these points thx
Explanation:
Related Questions
Answer the question above
Answers
Answer:
i think it's March
Explanation:
In C. elegans, cell-cell signaling specifies vulval cell fates, causing the Pn.p, cells to adopt primary, secondary or tertiary fates. Give the predicted effect of the following mutations in each of the cell fates listed (i.e. increase, decrease or no change for each cell type): primary tertiary rationale A. ras (gf) | B. loss of one of the kinases C. ras (gf) plus loss of kinase
Answers
In C. elegans, cell-cell signalling specifies vulval cell fates, causing the Pnp, cells to adopt primary, secondary or tertiary fates. The primary will increase with rate of ras function, decrease with loss of one kinase and no change in ras (gf) plus loss of kinase. The tertiary will have no effect during loss of one kinase but increase with gain of ras function.
(A) The predicted effect of the ras (gf) mutation is that, mutation in each of the cell will have the fate as follows. The gain of ras function will increase in primary and tertiary. More than three of the six VPCs differentiate into vulva cells.
(B) The predicted effect of the loss of one kinase mutation is that, mutation in each of the cell will have the fate as follows. The loss of kinase will have no effect on tertiary and primary will decrease. One of the two daughter cells of P6.p (primary cell) fails to divide further and differentiate into vulval tissue whereas the two adjacent VPCs are normal, resulting in two small ventral protrusions. The defective P6.p daughter cell can be at either the left or right side of the normal daughter cell.
(C) The predicted effect of the ras function plus loss of one kinase mutation is that, mutation in each of the cell will have the fate as follows. The ras function plus loss of one kinase will have no effect on both primary and tertiary. The vulva development is same as in wild type.
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what is the function of brain hxhtojuqat
Answers
Answer: buuu
Explanation:
An experiment involves a species of flies divided into two populations. Population A is exposed to X-ray radiation, while Population B is not exposed to the radiation. Population A exhibits amutation, while Population B exhibits no mutation. Both populations are then allowed to reproduce under normal conditions. Twenty generations later, the descendants of Population Aexhibit the same mutation as the original population, while the descendants of Population B do not. Which claim can Aditi make based on the results from this experiment?A.Mutations caused by environmental factors are detrimental to the organisms.B.Mutations caused by environmental factors can be inheritable.C.Mutations caused by environmental factors negatively affect reproduction rate.D.Mutations caused by environmental factors cannot be passed onto the next generation.
Answers
Mutations are changes that occur in the genetic material of an individual or a population.
Mutations can be spontaneous when a variation in the DNA replication process generates a change in the genetic material, or they can be acquired by external factors, such as radiation.
When there is a change in the genetic code of individuals, this change will also be passed on to their descendants. Therefore, it is hereditary.
Analyzing the exercise, we have that the answer is option "B" is correct because mutations induced by external factors can be hereditary, so it affected the entire population A.
fill in the blank. in an informative speech about deforestation, you use vivid words to explain to your audience what a particular place in the amazon rain forest was like before and after all the trees had been cut down. in this instance, you are____what a place was like.
Answers
In an informative speech about deforestation, you use vivid words to explain to your audience what a particular place in the amazon rain forest was like before and after all the trees had been cut down. in this instance, you are describing what a place was like.
To put it simply, an instructive speech is one that is totally and only focused on facts. In essence, an informative speech disseminates knowledge, which is a work that everyone does on a daily basis in one way or another. People use informative speaking techniques every day, whether it's offering lost drivers directions, explaining the specials of the day as a waiter, or summarizing a movie's narrative to friends.
A second characteristic of an informative speech is that it does not try to persuade the audience that one idea is superior to another. It makes no recommendations for action.
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A spider has evolved to have the shape of an ant, which protects it from predators. This spider is a _____.
Answers
In order to protect itself from predators, a spider is evolved to resemble an ant. This spider resembles Batesian ants.
What name do predators go by?The Yautja, also known as the Hunter or Hunter, are an otherworldly species distinguished by their practise of killing other hazardous species for amusement and honour, including people.
Do Predators still exist?They worked together to try to discover a way out and get back to Earth. Royce and Isabelle were left trapped on the planet following an unsuccessful attempt to escape on a Yautja spacecraft; they became the only of the group to surviving the encounter with Super Predators.
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Is it a scientific theory or a scientific law that the characteristics of living things change over time?
Answers
Answer:
Scientific Theory
Explanation:
The statement "the characteristics of living things change over time" refers to the concept of biological evolution, which is widely accepted as a scientific theory in the field of biology. In scientific terms, a theory is a well-substantiated explanation of a natural phenomenon that is supported by extensive evidence, experimentation, and scientific consensus. The theory of evolution, proposed by Charles Darwin and further developed over time, provides a comprehensive explanation for the diversity and change in the characteristics of living organisms. It is supported by a vast body of evidence from various scientific disciplines, including genetics, paleontology, comparative anatomy, and molecular biology.
In contrast, scientific laws describe observable patterns or regularities in nature that are often expressed as mathematical equations or principles. Laws, such as Newton's laws of motion or the laws of thermodynamics, describe specific relationships or behaviors in the physical world.
Therefore, the statement about the characteristics of living things changing over time aligns with the theory of evolution, rather than being described by a scientific law.
Hope this helps!
Which resource is a direct ecosystem service?(1 point)
Responses
land development
land development
biodiversity
biodiversity
photosynthesis
photosynthesis
fresh water
Answers
A direct ecosystem service resource is fresh water. Ecosystem services are advantages that humans derive from ecosystems.
What kind of ecosystem service is an example of?Forests and grasslands provide a range of ecosystem services. In addition to providing food, fuel, and fibre, forests preserve biodiversity and genetic resources, purify the air, filter water supplies, control flooding and erosion, and provide opportunities for recreation, education, and cultural enrichment.
Direct ecosystem: what is it?Direct ecosystem services are those offered by an ecosystem that directly benefit people. They consist of food, water, the cycling of nutrients, crop pollination, precipitation, and other material advantages.
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5. If a human blood cell is placed in pure water, it will eventually rupture and go through
lysis. Why would an onion cell not rupture when placed in pure water?
Answers
Which of the following statements about renewable and non-renewable energy sources is true?
In the United States, about 20% of energy comes from renewable energy.
Coal produces 39% of the country's heating and transportation fuel.
Much of the energy used to power day-to-day activities is in the form of chemical energy.
Non-renewable energy can be replenished in a relatively short amount of time.
Answers
Answer:
Option 1
Explanation:
Option 1
In the United States, about 20% of energy comes from renewable energy.
In the United States, about 20% of energy comes from renewable energy.
Explanation:The correct statement about renewable and non-renewable energy sources is that in the United States, about 20% of energy comes from renewable energy.
Coal actually produces 39% of the country's electricity, not heating and transportation fuel.
Much of the energy used to power day-to-day activities is in the form of electrical energy, not chemical energy.
Non-renewable energy sources cannot be replenished in a relatively short amount of time.
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3. Explain how chromosomes are related to chromatin. Why are chromosomes important for mitosis?
Answers
Answer:ggg
Explanation:
Drag each item to the correct location to indicate whether it describes the American or European weather model.
American model European model
SOMEONE PLEASE HELP!!
Answers
European Model
Composed of four separate models: atmosphere, ocean, land/soil, and sea ice Ensemble forecast consists of 21 separate forecasts Predicts weather out to 10 daysAmerican Model
Ensemble cast consists of 51 separate forecastsProduces on average the most accurate forecasts in the worldPredicts weather out 16 daysWhat are the different weather model?The American model is a global weather prediction system developed by the National Oceanic and Atmospheric Administration (NOAA). It is composed of four separate models: the atmosphere, ocean, land/soil, and sea ice. The ensemble cast consists of 51 separate forecasts, which are then combined to produce a single forecast.
The European model is a global weather prediction system developed by the European Centre for Medium-Range Weather Forecasts (ECMWF). It is composed of three separate models: the atmosphere, ocean, and land/soil. The ensemble forecast consists of 21 separate forecasts, which are then combined to produce a single forecast.
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PLEASE HELP DUE SOON! IM SO CONFUSED!
Write a brief story about Timmy, who accidentally walked into a rose bush, describing the reflex arc in biology 30 level detail.
Answers
When Timmy steps on the rose bush, the sensory receptor on his toe receives the stimuli, sends it the spinal cord through a sensory neuron which they initiates a response sent through a motor neuron to the muscle and he withdraws his leg in pain.
What is a reflex arc?A reflex arc refers to the neuronal pathway which controls a reflex action.
A reflex action is an action which occurs involuntarily.
Examples of reflex actions include thhe following:
withdrawing the foot quickly when one steps on a sharp objectwithdrawing the hand quickly when one touches a hot surfacethe je_rking of the kneecoughing or sneezing, when irritants enter the nostrils.Reflex actions do not need to involve the brain, hence they occur very quickly.
The path of a reflex arc begins with a sensory receptor which receives the stimuli, travels to the spinal cord through a sensory neuron which they initiates a response that is sent through a motor neuron to an effector such effector such as a skeletal muscle.
In conclusion, a reflex arc is the path of a reflex action through the body.
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Your friend claims that an energy pyramid may not have the same shape as a pyramid of numbers for the same ecosystem, as shown in the diagrams.
Energy Pyramid
Pyramid of Numbers
Trophic 3
level
2
Trophic 3
level
2
Joules (J)
Number of individuals
Which statement accurately uses the diagrams to support this claim?
• A. A few large producers can support a very large primary consumer population, as shown in the pyramid of numbers.
B. Occasionally, primary consumers are able to carry out photosynthesis, as shown in the pyramid of numbers.
c. A large number of producers can support the same number of primary consumers, as shown in the energy pyramid.
D. Higher trophic levels always contain fewer individuals, as shown in both the energy pyramid and the pyramid of numbers.
Answers
The correct statement that accurately uses the diagrams to support the claim that an energy pyramid may not have the same shape as a pyramid of numbers for the same ecosystem is: Higher trophic levels always contain fewer individuals, as shown in both the energy pyramid and the pyramid of numbers.
The correct answer is option D.
Both the energy pyramid and the pyramid of numbers illustrate the relationship between trophic levels in an ecosystem. The energy pyramid represents the flow of energy through different trophic levels, with each level consuming a portion of the energy from the level below. As energy is transferred, some energy is lost as heat, resulting in a decrease in available energy at higher trophic levels. This reduction in energy availability limits the number of organisms that can be supported at each level, leading to a decrease in the number of individuals as we move up the pyramid.
Similarly, the pyramid of numbers represents the number of individuals at each trophic level in the ecosystem. It typically follows a similar pattern to the energy pyramid, with a larger number of individuals at lower trophic levels and a decreasing number of individuals at higher trophic levels. This is because energy transfer is not 100% efficient, and as energy flows through the food chain, it supports a smaller number of organisms at each successive level.
The statement in option D accurately highlights the consistent pattern observed in both the energy pyramid and the pyramid of numbers, where higher trophic levels contain fewer individuals. This supports the claim that the shape of an energy pyramid may not necessarily match the shape of a pyramid of numbers, as the number of individuals in each trophic level is influenced by factors other than energy availability, such as predator-prey interactions and reproductive rates.
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The tissue layers of blood vessels from outer layer to inner layer are:
Answers
Answer:
The outermost layer is called the tunica adventitia.
The muscular middle layer is called the tunica media.
The innermost layer is called the tunica intima.
Explanation:
Answer:
tunica intima is the inner most tissue, tunica externa is he outermost layer of a blood vessel
Explanation:
_____ are emitted by the combustion of fossil fuels and contribute to changing climate on the planet. Specific examples are carbon
dioxide and methane.
A. Energy
B. Non-renewable fuels
C. Hydrogen atoms
D. Greenhouse gases
Answers
Option D. Greenhouse gases are emitted by the combustion of fossil fuels and contribute to changing climate on the planet. Specific examples are carbon dioxide and methane.
What are Greenhouse gases released to the enviroment?Greenhouse gases released to the enviroment are gases that have the potential to trap solar radiation before they can dissipate into the space, thereby warming the planet.
Therefore, with this data, we can see that greenhouse gases are released into the enviroment and may increase the temperature by trapping solar radiation and thus increasing global temperatures in the planet.
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Assignment debate on rainy season is better than dry season
Answers
This is an example of a debate on rainy season is better than dry season with the pros and cons of both seasons.
How to write a debate?Pro: Rainy Season is Better Than Dry Season
Rainy season is better than dry season because it provides much-needed water for plants and animals. It also helps to cool the air and reduce the risk of wildfires. Additionally, rainy season is a time for many plants to bloom, which can be a beautiful sight to behold.
Some of the benefits of rainy season:
Increased water supply: Rainy season provides much-needed water for plants and animals. This is especially important in areas that are prone to drought.
Cooler air: Rainy season helps to cool the air, which can be a relief from the heat of the summer.
Reduced risk of wildfires: Rainy season helps to reduce the risk of wildfires by keeping the ground moist.
Increased plant growth: Rainy season is a time for many plants to bloom. This can be a beautiful sight to behold and can also provide food for animals.
Con: Dry Season is Better Than Rainy Season
Dry season is better than rainy season because it is less likely to cause flooding and mudslides. It is also a time for many plants to go dormant, which helps to conserve water. Additionally, dry season is a good time for farmers to harvest crops.
Some of the benefits of dry season:
Less flooding and mudslides: Dry season is less likely to cause flooding and mudslides because there is less water in the ground.
Plants go dormant: Many plants go dormant during dry season, which helps to conserve water.
Good time for farming: Dry season is a good time for farmers to harvest crops because the ground is dry and hard.
Conclusion
Rainy season and dry season both have their own benefits and drawbacks. Ultimately, the best season depends on the individual's needs and preferences. If you are looking for a season with plenty of water and cooler temperatures, then rainy season is the better choice.
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bible verses about responsibility
Answers
Answer:1 Timothy 5:8
Explanation:
“But if anyone does not provide for his relatives, and especially for members of his household, he has denied the faith and is worse than an unbeliever.” If you can please answer my questions too!! Thx!
Which statement describes all stable ecosystems?
1) Herbivores provide energy for the autotrophs,
2) The populations of predators are dependent on
the populations of their prey.
3) The number of autotrophs equals the number of
heterotrophs.
4) Consumers synthesize ATP from light energy.
Answers
Stable ecosystem has the populations of predators are dependent on the populations of their prey of predators .
What is ecosystem?An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
Who are predators ?Predators are organisms that hunt and kill other organisms for food. The organisms that are consumed by the predators are known as the prey.
Stable ecosystem has the populations of predators are dependent on the populations of their prey of predators .
Hence, option 2 is correct
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Which characteristics do all living things share?
A.
having the ability to communicate
B.
being composed to one or more cells
C.
being able to breathe air
D.
the tendency to live in groups
Answers
Answer:
being composed of one or more cells
Explain the following statement using evidence from the DNA sequences:
Mutations in the DNA change how proteins are made which leads to new and different forms of phenotypes.
Answers
A missense mutation is a Genetic alteration that causes the protein produced to encode a different amino acid at a specific location. Certain missense mutations change how the resulting protein functions.
Why do some changes in an organism's DNA sequence cause change, while others do not?While mutations always result in a change in the DNA sequence, they do not necessarily have a noticeable impact on the organism or alter the resulting protein. Since most amino acids can be encoded by two or more distinct codons, this is possible.
Can mutations be found using DNA sequencing?The ability to properly identify and characterise the majority of sequence changes makes direct DNA sequencing, in theory, the method for mutation identification with the highest degree of accuracy.
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What is this people
Answers
Answer:
genetic code and rna codon
Explanation:
G: guanine
U: uracil
A: adenine
C: cytosine
Help i need all 3 done
Answers
Answer and Explanation:
1. Transform
2. Convergent
3. Divergent
Sorry, it took me a while to add this but my mum wanted me for something..
Monarch caterpillars rely on milkweed for food and shelter. Over a period of 10 years, the populations of these two species experienced the following changes in an ecosystem: Milkweed population: 75% decrease Monarch butterfly population: 85% decrease At the same time, the use of herbicides, which are chemicals used to decrease weed growth, increased by 175%. Which hypothesis about the relationship between the abiotic and biotic components of this environment is supported by this information? OA. The increase in herbicide usage caused a decrease in the milkweed population, which resulted in a decreased monarch butterfly population. B. The decreased milkweed population resulted in decreased herbicide usage, causing an increase in the monarch butterfly population. OC. The increase in herbicide usage caused a decrease in the monarch butterfly population, which resulted in a decreased milkweed population. D. The decreased milkweed population resulted in increased herbicide usage, causing a decline in the monarch butterfly population.
Answers
The hypothesis supported by the given information is (A) The increase in herbicide usage caused a decrease in the milkweed population, which resulted in a decreased monarch butterfly population.
The evidence provided states that over a period of 10 years, the milkweed population decreased by 75% and the monarch butterfly population decreased by 85%. At the same time, the usage of herbicides increased by 175%.
This information suggests a cause-and-effect relationship between the increase in herbicide usage and the decline in both the milkweed and monarch butterfly populations. Herbicides are chemicals used to decrease weed growth, and milkweed is considered a weed in agricultural settings. The increased herbicide usage likely led to a decrease in the milkweed population since it was specifically targeted for control.
As monarch caterpillars rely on milkweed as their primary food source and shelter, a decrease in the milkweed population would directly impact the monarch butterfly population. With fewer milkweed plants available, the monarch butterflies would have less food and suitable habitat, resulting in their population decline.
Therefore, the supported hypothesis is that the increase in herbicide usage caused a decrease in the milkweed population, which subsequently led to a decreased monarch butterfly population (option A).
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Carbon moves out of the
_by decomposition
O Hydrosphere
O Geosphere
O Atmosphere
Biosphere
Answers
c
Explanation:
atmosphere(Atmosphere)
1. All of the parts inside the cell are floating around in the cytoplasm. The cytoplasm is most like a ___.
a. Gel-like fluid, jello
b. Solid bone
c. Gaseous vapor
d. Soft tissue
2. Which of the following organelles is correctly matched with its function (job)?
a. Nucleus – directs the cell
b. Cell Wall – transports materials
c. Mitochondria – makes food
d. Vacuole – makes energy
3. Which analogy would best match the job of the chloroplast?
a. Security guard – controls what enters the cell
b. Storage closet – stores extra supplies for the cell
c. Teacher – directs the cell
d. Chef – makes food for the cell
4. The job of the lysosome can be compared to a stomach, trash can, or janitor because _____.
a. It makes food for the cell
b. It acts as the “brain” of the cell
c. It controls what enters and exits the cell
d. It digests food and cleans up old cell parts
5. Which two structures would be present in the cells of a maple tree, but NOT in the cells of a human?
a. Chloroplast and cell wall
b. Chloroplast and cytoplasm
c. Cytoplasm and cell wall
d. Vacuole and cell membrane
6. Which cellular process only occurs in plants?
a. Photosynthesis
b. Mitosis
c. Cellular respiration
d. Diffusion
7. Plant cells are usually _____ in shape.
a. Rectangular
b. Triangular
c. Octagonal
d. Circular
8. Where does photosynthesis take place?
a. Mitochondria
b. Cell membrane
c. Chloroplast
d. Nucleus
9. Which process is involved in turning energy from the sun into sugar?
a. Mitosis
b. Photosynthesis
c. Cellular respiration
d. Osmosis
10. Which organelles work together to provide a plant cell with structure and support?
a. The cell wall and large central vacuole
b. The cytoskeleton and cell membrane
c. The cytoskeleton and nucleus
d. The cell wall and chloroplasts
11. Which BEST explains why the nucleus is important to cells?
a. All cells have nuclei
b. The nucleus is protected by a double membrane
c. The nucleus is separate from other structures in a cell
d. The nucleus contains coded instructions for making proteins
12. Which pair of organelles is responsible for the energy supply to eukaryotic cells?
a. Nucleus and ribosomes
b. Mitochondria and nucleus
c. Ribosomes and chloroplasts
d. Chloroplasts and mitochondria
13. All cells, prokaryotic and eukaryotic, have a few common features. Which cell feature is found in both prokaryotic and eukaryotic cells?
a. Ribosome
b. Chloroplast membrane
c. Nucleus
d. Cell wall
14. In which type of cell would mitochondria be MOST numerous?
a. Red blood cell
b. Muscle cell
c. Nerve cell
d. Skin cell
Answers
Answer:
1 A
2 A
3 D
4 D
5 A
6 A
7 A
8 C
9 B
10 A
11 D
12 D
13 A
14 B
Explanation:
What is the purpose of the lab? for weather patterns
Answers
Answer:
Weather Lab is a tool to help visualize how North America's weather is formed.
Explanation:
Weather Lab is a tool to help visualize how North America's weather is formed. This lab is designed to model the complex interactions between air masses and ocean currents, but like all models it represents probable outcomes. Each prediction you make is for possible outcomes during Spring.
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Genes are located on
A. dna
B. Proteins
C. Rna
Answers
Answer:Dna
Explanation:
Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins. In humans, genes vary in size from a few hundred DNA bases to more than 2 million bases. (medlineplus.gov)
Match these items.
acid
1. an atom that has gained or lost electrons
1
ion
2. produces OH-ions when added to water
I base
3. produces Hions when added to water
Answers
Answer:
acids
Explanation:
positive ectron
Examine the cell diagrams shown. Which of the following choices identifies the eukaryotic cell for the correct reason?
Select one:
a. Because it contains organelles
b. Because it is a single cell
c. Because it contains genetic material
d. Because it is much smaller
Answers
Answer:
Option a
Explanation:
A eukaroytic cell contains more organelles than prokaryotic cells, and it is much bigger and complex.
hope this helps and is right :)
The choice that identifies the eukaryotic cell for the correct reason would the presence of organelles. The correct option would, therefore, be A.
Eukaryotic cells differ from prokaryotic cells such that:
Eukaryotic cells have nucleus, prokaryotic cells do not. The genetic materials of prokaryotic cells lies freely within the cytoplasm.Eukaryotic cells have membrane-bound organelles while prokaryotic cells do not. In size, eukaryotic cells (10 - 100 microns) is much bigger than prokaryotic cells (0.1 - 5 microns).In the images, the organelles of the eukaryotic cells can be seen while the smaller size of the prokaryotic cell can also be observed.
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