Answer:
Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation
Explanation:
What occurs during the link reaction in cellular respiration?
Answer:
Produce an acetyl group.
Explanation:
The Link Reaction happens in Mitochondria. Mitochondria in cells take up the pyruvate which is formed from glycolysis in the cytoplasm. Once the pyruvate is in the mitochondrion, enzymes within the matrix of the mitochondrion remove hydrogen and carbon dioxide from the pyruvate. This is called oxidation (removal of hydrogen or addition of oxygen) and decarboxylation (removal of carbon dioxide). Therefore, the process is called oxidative decarboxylation. The hydrogen removed is accepted by NAD+. The link reaction results in the formation of an acetyl group. This acetyl group is then accepted by CoA and forms acetyl CoA.
Hopefully, the pic can help you to more understand-
How have phosphate minerals most affected human activity
Answer:
How have phosphate minerals most affected human activity? Using phosphate minerals in fertilizer allowed humans to grow more crops. The availability of rock and mineral resources has major effects on human activity.
Explanation:
hope this helps
9. Why does sediment cause coral bleaching?
1.Sediment makes the water warmer.
2.Sediment makes the water clearer.
3.Sediment makes the water cloudy.
4.Sediment makes the water cooler.
Answer:
3. Sediment makes the water cloudy.
Explanation:
Sedimentation has been identified as a primary stressor for the existence and recovery of coral species and their habitats. Sediment deposited onto reefs can smother corals and interfere with their ability to feed, grow, and reproduce.
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Identify how the addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes.
The addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes because they help to condense it into chromatin.
What is the relationship between histones and DNA?Histones are a family of basic proteins that associate with DNA in the nucleus and help to condense it into chromatin. Nuclear DNA does not appear on free linear strands; it is highly condensed and involves histones to fit inside the nucleus and participate in the formation of chromosomes.
How does DNA compact with histones?Each chromosome is made up of a single molecule of double-stranded DNA wrapped around histones, the nucleosome. This fiber rewinds into a second level of compression, known as the solenoid. Most of the time, cells keep the DNA compacted in the selenoid loops attached to the chromosomal backbone.
Whit this information, we can conclude that the addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes because they help to condense it into chromatin.
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Which of the following populations are at risk of desiccation?
A. those in the tidal pools
B. those in the sunlight level of the ocean
C. those in the twilight level of the ocean
D. those in the deep level of the ocean
7. An example of artificial selection is:
•After a large population is destroyed, a smaller population repopulates the species.
•A small group if individuals breaks off from a larger population to relocate.
•Women with wider hips due to caesarian section births.
•Women with more narrow hips due to caesarian section births.
Answer:
The fourth option.
Explanation:
Well, it's correct
What does the peripheral nervous system do?
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Explanation ↓
The peripheral nervous system carries out the following functions :
It conveys motor commands to voluntary musclesIt carries sensory information about the environment to the brainIt regulates autonomic (automatic) functions.These functions are the 3 functions of the P.N.S. (the Peripheral Nervous System)hope helpful ~
What is the difference between renewable and non-renewable resources? (Select all that apply).
Renewable resources are in abundance, but non-renewable resources are limited.
Non-renewable resources are in abundance, but renewable resources are limited.
Renewable resources can replenish themselves, but non-renewable resources cannot.
Non-renewable resources can replenish themselves, but renewable resources cannot.
(Please select ALL that apply)
The main answer:
C: Renewable resources can replenish themselves, but non-renewable resources cannot.
B: Renewable resources are in abundance, but non-renewable resources are limited.
Some explanation:
Renewable resources can be replaced or reused, therefore, they do not disappear; while non-renewable ones cannot be replaced and eventually run out.
Hope it helps!
F r o g
Which of the following has the most potential of experiencing background extinction based on the natural disruption described?
A population observing a natural volcano erupting on a remote island every year
A population that lost their habitat due to a hurricane lasting several hours
A species that will not grow during a specific season every year
A species that struggles to compete for resources due to limited access from habitat loss
The option that has the most potential of experiencing background extinction based on the natural disruption is : ( C ) A species that will not grow during a specific season every year
What is Background extinctionBackground extinction is the gradual extinction of species due certian environmental factors such as change in weather conditions, disease, competitive disadvantage and habitat loss.
A population that will not grow during a specific season every year will experiences a gradual extinction process while other options will experience a fast and sudden extinction process.
Hence we can conclude that the most potential of experiencing background extinction based on the natural disruption is : A species that will not grow during a specific season every year.
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Answer:
A species that struggles to compete for resources due to limited access from habitat loss
Explanation:
I got it right on the test
Which of the following is an example of marine science being shaped by cultural context?
A. ancient societies using ships to transport troops
B. the attempt to explore the trenches of the oceans
C. the belief in sea monsters common in the Middle Ages
D. current scientists working together to address global warming
An example of marine science being shaped by cultural context is D. current scientists working together to address global warming as both marine scientists and climate scientists are working.
What are Large marine reserves?It can assist save you a number of the worst consequences of weather alternate with the aid of using supporting to sequester atmospheric carbon dioxide and giving a lift to the organic strategies that assist ecosystems adapt, consistent with the team's studies.
In 1988, U.S. scientist James Hansen went earlier than Congress and testified approximately his studies into the warming of the planet. More than 30 years later, Hansen's prediction that the common international temperature should upward thrust with the aid of using approximately 1 diploma Celsius.
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Will give 50 points to whoever can answer.
Show the correct order for impulse transmission after you touch cold glass of water
Answer:
answers: 3rd, then 2nd then 4th then 1st. 3rd goes in first, 2nd in 2, 4th in 3rd, 1st in last
Wetlands are areas where water covers the soil. Swamps, marshes, and other wetland areas help to control flooding because they naturally hold water. Wetland regeneration is a recent trend in conservation. In some areas, land previously used for farming is being converted into wetlands.
Research wetlands, the types of organisms that live there, and examples of wetland restoration and regeneration. Then answer these questions:
What factors do scientists need to consider before turning farmland into wetlands?
How could wetland restoration affect humans who live in the area? How might it affect native wildlife? (Consider both positive and negative consequences.)
If you were planning a wetland regeneration project, how would you monitor its success?
Answer:
There are plenty of animals that live in wetlands, such as lizards, turtles, snakes, newts, Alligators, Invertebrates, and along with sea life. Scientists need to consider taking farmland and constructing it into a wetland; they would need to consider the influx and the outflow of the groundwater levels and the duration of ground saturation. Wetlands can have both positive and negative effects on humans. Some negative side to wetlands is how to release of chemicals coming from swamps could affect the environment for people. Also, how fast pollution could arise from these released chemicals. Waterlands could also change the water quality, quantity, and flow. Although there are negative points, we do have positive ones as well; This includes how the wetlands will be protecting endangered species and how it will clean the lakes and seas. The water quality, quantity, and flow also could increase instead of decrease. If I was to make a wetland regeneration project, I would monitor its success by making charts on what increased positively like the native plants and the nest platforms.
Explanation:
100% on it
Answer:
Hope this helps.
Explanation:
1.Elements of site hydrology that are important to maintaining a wetland are inflows and outflows of ground water and surface water, the resulting water levels, and the timing and duration of soil saturation or flooding.
2. In addition to supporting food and other resources for local people, restored mangroves effectively recycle nutrients, provide wildlife with habitat, and protect coasts from storms, erosion, and sea level rise
3.Appropriate metrics to evaluate success in achieving this goal include number of native plant species present, presence and density of invasive plant species, coverage of wetland habitat, hydrological measurements, and surveys for selected wildlife species of interest.
How are photosynthesis and cellular respiration related?
O A. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
B. Cellular respiration provides the energy for photosynthesis.
OC. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
D. The products of photosynthesis are the reactants of cellular
respiration.
Answer:
D
Explanation:
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13. The diagram at right shows one position of the earth as it makes its way around the sun. Which locations are experiencing winter?
A)
B)
C)
D)
E)
14. At which location would a person experience the longest number of daylight hours?
A)
B)
C)
D)
E)
Answer:
13.) A
14.) B
Explanation:
A:
Position A is leaning away from the sun, so it is therefore experiencing winter.
B:
Position B, the Equator experiences the longest number of daylight hours, as it is in the middle and the sun reaches it for a longer period of time
I also completed this, it would appear we are in the same boat.
The model below shows the structure of a molecule of water. What do the black circles and grey circle represent?
Explanation:
thats only that i learnd
1) What does bioremediation mean ?
2) What is bioremediation
3) What are 3 types of Bioremediation ?
Answer:
1. using organisims to remove things that were contaminated in water
2. microbial bioremediation, phytoremediation, and mycoremediation.
Explanation:
Human activities, chiefly burning fossil fuels, adds carbon dioxide into the
ocean. However, the biggest natural process that adds dissolved carbon
dioxide into the deep ocean is:
Answer:
look left maybe right or out
at the start of every food chain or food web and the bottom of every energy pyramid you will find _____ such as plants or algae. they provide the energy for all of the _____ in the chain, along the web, and upwards on the pyramid.
1) Producers
2) Organisms
Name: Click or tap here to enter text. Date: Click or tap here to enter text. Graded Assignment Lab Report Create a dichotomous key that identifies the 10 leaves on the Common Leaves sheet. Look closely at those leaf samples and devise a dichotomous key that helps you identify them. Be sure that your dichotomous key contains only pairs of statements about a single characteristic. For example, a pair of statements might be: A.leaf margin smooth B.leaf margin toothed However, you should avoid pairs of statements that do not address the same characteristic. The following pair, for example, would not be very informative in your key: A.leaf margin smooth B.leaf type needle-like As you develop your key, test it out with the 10 leaves provided on the Common Leaves sheet. When you've developed a key that identifies all 10 leaves, type your statements, “go tos,” and identifications, following the format in the example below. The example is based on this lesson’s dichotomous key for birds. Statement Types/Dichotomous key for birds Identification Name/Number of Leaves Statement 2a The bird has a crest of feathers on the top of its head. go to statement or identify bird blue jay Statement 2b The bird has a smooth head. go to statement or identify bird 3 Once you have completed your dichotomous key, answer the two remaining questions. When you are finished, submit this assignment to your teacher by the due date for full credit. Total score: Click or tap here to enter text. of 26 points (Score for Question 1: Click or tap here to enter text. of 20 points) 1.Complete a dichotomous key for the 10 leaves on the Common Leaves sheet. The chart provided here allows for 11 pairs of statements. Depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some. Statement Types/Dichotomous key for leaves Identification Name/Number of Leaves Statement 1a Click or tap here to enter text. go to statement or identify leaf Click or tap here to enter text. Statement 1b Click or tap here to enter
Answer:
How to Make a Dichotomous Key
Explanation:
Step 1: List down the characteristics. ...
Step 2: Organize the characteristics in order. ...
Step 3: Divide the specimens. ...
Step 4: Divide the specimen even further. ...
Step 5: Draw a dichotomous key diagram. ...
Step 6: Test it out.
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4. When plates slide against each other as seen on the San Andreas fault, many____________are known to occur.
5. This type of boundary is called _________
Answer:
4.) ...many earthquakes are known to occur
5.) ... this type of boundary is called a transform plate boundary
Step by step:
i just learned this like a month ago
How much food is required for a blob to reproduce from one generation to another?
Answer:
a blob to generate to another which is option A:1
hope this helps you
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According to the graph below, Kenya’s population is
A:shrinking
B:growing
C:mostly old people
D:stable and not growing or shrinking
B! I hope this is correct!
What kind of glands are the oil and sweat glands?
Answer:
Sebaceous glands
Explanation:
Your body's oil secreting glands are known as sebaceous glands. This is why they are often referred to as the oil glands. They are a form of simple saccular (alveolar) holocrine gland.
balance the chemical equation?
Answer:
2H2O2 -> 2H20 + 1O2
Hope it helps...!!!
All herbivore species are small such as insects and would not be able to have massive muscular bodies.
O True
O False
Answer:
False!!
Explanation:
Herbivores vary in size. Some are the size of an ant and others are as tall as a giraffe! Extinct species such as some dinosaurs were herbivores. :)
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Is aquatic succession more like primary succession or secondary succession on land? Explain your reasoning
Answer:
n
Communicating openly, clearly, and with empathy will help in building rapport with a team and boost their spirit productively. Establishes Transparency – Transparency generates trust among employees. Trust creates an environment where people are honest and accountable.
For which two reasons are some fish unable to avoid
swimming into an oil spill?
A
They mistakenly think oil spills create idea conditions for
hiding from predators.
B
They have survived previous oil spills and expect the
same outcome each time.
C
Fish looking for food may mistakenly believe an oil spill
is just the darkness of the night.
D
Fish following natural behavior patterns will not be aware
they are swimming into an oil spill.
E
They have had no experience from which they learned to
move away from oil spills..
Which of the traits below are unique to animals?
Answer:
A unique trait of animals is that their multicellukar eukaryotes that lack call walls
Explanation:
maybe next time put answer choices to be able to help u better... :)
Which would least likely have an impact on global climate changes?
What is the main purpose of the seeds in plants that have them?
Answer:
I think it's to protect and distribute the zygote.