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Thepotemich [5.8K]
3 years ago
14

Can someone say why polar bears are going extinct? Please explain your answer

Biology
2 answers:
KATRIN_1 [288]3 years ago
5 0

Answer:

I have a little frenchie pup who's name is Polar and he is gonna go extinct because he literally jumps off of fences on his face, he is a psycho path.

Explanation:

kondor19780726 [428]3 years ago
3 0

Polar bears are listed in red as they are belong to Endangered Species. These species are gonna extincting due to gradual changes by environmental factors.

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Which organism has the most energy available?
svetlana [45]

Answer:

B.Plants

Explanation:

They are considered as autotrophs because they manufacture their own food and have the highest amount of energy.

3 0
2 years ago
blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, the bl
snow_tiger [21]

Blood flows through an artery that is partially blocked. as the blood moves from the wider region into the narrow region, alternately increases and then decreases.

<h3>What is the purpose of blood flow in heart?</h3>

The removal of positive charge by electrochemical gradients causes the membrane potential of the cell to shift more strongly in the direction of the equilibrium potential for potassium.

The membrane would become more negative as potassium permeability through the membrane increased. Given that potassium is a positively-charged ion and that the intracellular environment has a net negative charge, enhancing the membrane's permeability would result in a more negative membrane.

For instance, the amplitude of the potassium concentration gradient across the myocyte decreases as the external potassium level rises, lowering the resting membrane potential.

To know more about blood flow in heart you may visit :

brainly.com/question/4220852

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4 0
1 year ago
The body sizes of sympatric and allopatric P. cinereus and P. hoffmani are consistent with a hypothesis of character displacemen
Genrish500 [490]

Answer:

Option C - The sympatric salamander populations evolved their present body sizes after they became sympatric.

Explanation:

First, note the definitions of each terms.

1) Sympatric occurs when organisms especially of same species occurring in the same, or in overlapping territory, do not interbreed.

2) Allopatric occurs when organisms are NOT living in the same territory and thus unable to crossbreed.

On 1st QUESTION

The argument would be strengthened by the failure of P. cinereus and P. hoffmani to crossbreed making traits for body size to become distinct (dissimilar) in each specie.

On 2nd QUESTION

Definitely, salamanders species occurring in the territory, do not interbreed after they became sympatric, thus, making characters among same species to be increasingly different over generations.

7 0
3 years ago
What would happen over the following fifty years if a fire burned off all of the vegetation in the area
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People would have to plant more, people could die, animals could die.
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3 years ago
The reproductive functions in both males and females are complex and intricate. Many times this means that someone who wants a c
EleoNora [17]
Yes it does need to happen.
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3 years ago
Read 2 more answers
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