From 2007 to 2010, the mink population stayed fairly consistent, but in 2010, the population dramatically decreased. Which of the following could describe what happened to the population of minks?

The mink population ran out of space to live so many died

A catastrophic event occurred like a disease or big natural disaster that quickly wiped out a large number of mink.

There were more voles for the mink to eat, so their population increased

The bears began to eat the mink in 2010 so the population of minks decreased.

The presence of these behaviours is most likely due to the fact that these behaviours helped birds to survive in the past.

Bird are the warm blooded vertebrates that has feathers, toothless beaked jaws and has the ability to reproduce their young ones through the laying of eggs.

They take care of their young ones till a certain life stage to ensure their survival.

Therefore, the presence of these behaviours is most likely due to the fact that these behaviours helped birds to survive in the past.

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The two main causes of variation are "mutation" and "genetic recombination".

A mutation is a change in the DNA sequence of an organism. Mutations can result from errors in DNA replication during cell division, exposure to mutagens or a viral infection.

Genetic recombination refers to the rearrangement of DNA sequences by the breakage and rejoining of chromosomes or chromosome segments.

Answer:

The two main causes of variation are mutation and genetic recombination in se.xual reproduction.

Explanation:

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The total surface area of the cube 2 is 24

The surface area is equal to six times the square of the length of the cube's sides. It is denoted as 6a₂, where an is the cube's side length.

As per formulae of the total surface area of a cube

A = 6a₂

Given a= 2,

A= 6.2.2= 24

Hence the answer is 24.

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The fossil that was discovered by Charles Darwin goes a long way to suggest that the earth is older than 6000 years.

The man Charles Darwin is the renowned proponent of the theory of evolution. According to this theory, living things all evolved from simple life forms many years ago.

The fossil that was discovered by Charles Darwin goes a long way to suggest that the earth is older than 6000 years.

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Answer:

The dna Seprates into two

Explanation:

also the cytoplasm divdes causing it to create two whole new cells

The best best plan to solve the problem of contamination in the surface water is to collect the runoffs in retention ponds for isolation and recovery of contaminants.

Surface runoff is an overland flow of excess water (with or without accumulated contaminants) that cannot be absorbed by the ground as infiltration.

According to this question, runoff from a uranium mine stockpile has contaminated the surface water in a location. This might cause health problems among people in that region.

However, one way to curb the problem of contamination in the surface water is to collect the runoffs in retention ponds for isolation and recovery of contaminants.

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Microorganisms are involved in

a. production of medicinal products.

b.transforming atmospheric nitrogen to a form useful to plants.

c.food production.

d.pollution cleanup.

e.All of the choices are correct.

Microorganisms participate in all the processes mentioned. All of the choices are correct

Microbes can be beneficial as well as harmful.

Some of the beneficial importance of microbes include:

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A female homozygous for blood type B marries a male heterozygous for blood type A, the offspring will be 75% AB and 25% Bo.

Homozygous and Heterozygous, in genetics, are individuals who have pairs of genes that are identical or different alleles. This means that while the homozygote has two identical genes alleles, with the heterozygous beings the opposite happens, since they have two different genes alleles.

With this information, we can conclude that a female homozygous for blood type B marries a male heterozygous for blood type A, the offspring will be 75% AB and 25% Bo.

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Here is the answer...hope it helps:)

Answer:

Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy stored in the bonds to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as movement.

Explanation:

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Answer:

a)A dutch father-son team named hans zacharias janssen invented the first so called compound microscope in late 16th century when they discoveted that if they put a lens at the top and bottom of a tube and looked throught lit , objects on the other and became magnified

b) leeuwenhoek the first prokaryotic cells in pond water

The three types of solutions and concentrations can be classified as:

The concentration of a solution must be expressed in quantitative units. So-called concentration units are used, which are quantitative measures of the affinity of solute that dissolves. The relative amount of a substance is known as the concentration and is expressed in different units.

In this case we can classify these solutions as :

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Answer:

The answer to the question is C

Answer: DNA Ligase

Explanation:

During DNA replication, both the parental DNA strands are separated and act as templates for the synthesis of new strands. The formation of the new strands occurs in only 5'-3' direction and thus both the strands are synthesized in a different manner. One new strand with the template of 3'-5' direction will be synthesized continuously and is called a leading strand. The other strand with the template of 5'-3' direction will be synthesized discontinuously in the form of DNA fragments. These fragments are called Okazaki fragments and the strand is called a lagging strand. DNA ligase connects these fragments later to form a continuous lagging strand.

Therefore, DNA ligase is required for ligation of Okazaki fragments, and in absence of DNA ligase, the ligation of fragments will not occur and the newly synthesized strand will be discontinuous. However, if DNA ligase is not present in the reaction mixture, then the chances are that not all the newly synthesized DNA strands will be discontinuous. Only the DNA molecule with the lagging strand will be in the form of fragments.

According to the research, autopsy results from people who have died of fatal familial insomnia show evidence of degeneration in the thalamus.

It is an autosomal hereditary disease that prevents falling asleep, that is, it is an absolute inability to fall asleep or to do so in an extremely superficial way.

Its onset is abrupt and continues to progress until it causes the death of the patient and its main neuropathological manifestation is degeneration of the thalamus, which is responsible for sleep.

Therefore, we can conclude that according to the research, autopsy results from people who have died of fatal familial insomnia show evidence of degeneration in the thalamus.

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Connective tissues support the tissues of the mucosa and connect it to the muscularis layer.

The blood supply of the submucosa provides nutrients to the wall of the stomach. Nervous tissue in the submucosa monitors the contents of the stomach and controls smooth muscle contraction and secretion of digestive substances.

The stomach secretes acid and enzymes that digest food. Ridges of muscle tissue called rugae line the stomach.

The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

Thus, this could be the answer.

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Answer:

they make there own good which creates energy for them to survive, grow and reproduce

Answer:

I think it's true

Explanation:

I'm so sorry if that's wrong

Answer: da

Explanation:

Answer:

c

Explanation:

Increased respiration in the leaves and stems reduce the sugar content in the fruits of a plant because sugars produced in the leaves are used as an energy source instead of being stored in fruits.

What is fruit?

A fruit is a mature, ripened ovary, along with the contents of the ovary. The ovary is the ovule-bearing reproductive structure in the plant flower.

Cellular respiration is the process wherein nutrients (glucose) are oxidized into carbon dioxide and water with release of lots of energy. The released energy is stored in form of ATP which serves as energy currency for cells. Since high temperatures increase the rate of respiration in the plants, sugars produced in the leaves are used as an energy source instead of being stored in fruits.

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Both droughts resulted in strong natural selection on medium ground finch populations  and both droughts resulted in alteration to available food, which favored the survival of some medium ground finches over others. Thus, the correct option is A and B.

Natural selection is a natural process in which organisms that are more adapted to their environment survive and reproduce more than those that are not.

Darwin's Finches' beaks were picked for their beneficial adaptations over generations until they all branched off to become new species. These birds have distinct beaks than mainland finches, although being almost identical in every other way.

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Nitrogen is present in the environment in abundance but still we cant inhale nitrogen

Nitrogen is physiologically inert. It contributes nothing to the functioning of our bodies. The cells in our body need oxygen to live, not nitrogen. we can find nitrogen in our body in form of nitrogeneous base in nucleotide.

We inhale all gases present in air fills our alveoli, by the process of diffusion, only oxygen in the air is taken into the blood stream while the other gases along with the waste CO2 is exhaled. So you do breathe in nitrogen, but it is exhaled as it is by the body.

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Answer:

Solar panels fight global warming by producing electricity that keeps us from burning greenhouse gas-producing fossil fuels. They also shade Earth from the sun.

Explanation: