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Leni [432]
3 years ago
10

How is a polar bear adapted to living in a cold polar areas

Biology
2 answers:
Diano4ka-milaya [45]3 years ago
5 0
Their white fur helps them blend in with the snow and ice. A polar bear<span> has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur. hope this helps!!</span>
zhenek [66]3 years ago
5 0
How has a polar bear adapted to its Arctic environment? Their white fur helps them blend in with the snow and ice. A polar bear has a layer of fat under its skin which helps it stay warm. It also has a thick layer of fur.
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Two genes, A and B, are located 30 map units apart. A mating between an individual homozygous dominant for both traits and one h
Westkost [7]

Answer:

35%

Explanation:

If two genes are 30 map units apart, 30% of the produced gametes will be recombinant.

A mating between an individual homozygous dominant for both traits (AB/AB) and one homozygous recessive for both traits (ab/ab) is conducted.

The F1 will be heterozygous for both genes: AB/ab.

The F1 progeny is then test-crossed to a homozygous recessive individual:

<h3>AB/ab X ab/ab</h3>

<u>The possible offspring will be:</u>

  • Parental (70%): AB/ab and ab/ab
  • Recombinant (30%): Ab/ab and aB/ab

Since 30% of all the gametes produced by the F1 individual will be recombinant, 70% will be parental. As there are two types of parental gametes, each of them will have a frequency of 35%.

<u>The offspring that will have a dominant phenotype for both traits has the genotype AB/ab with a proportion of 35%.</u>

8 0
4 years ago
Why might there be more dissolved oxygen in a lake in Vermont than in a similar sized lake in Florida in summer?
givi [52]
In summer, the temperature of Vermont is lower than that in Florida. And the temperature is an important factor influences the gas dissolving ability. When temperature increases, the ability will decrease. So there is more dissolved oxygen in Vermont's lake.
4 0
4 years ago
When a boxer is hit in the head by a moving fist, what type pf concussion injury does this,?
mr Goodwill [35]

There is a transient electro-physiologic dysfunction of the reticular activating system in the upper midbrain caused by rotation of the cerebral hemispheres on the fixed brainstem. -The CSF cushions the brain from light trauma in times of more severe impact, the forces on the brain may be linear, angular, or rotational, in rotational movement, the head turns around its center of gravity: this is the primary mechanism causing concussion. 

6 0
3 years ago
Low blood pressure may cause the net hydrostatic pressure of a capillary to be less than normal. This will result in a(n) ______
monitta

Low blood pressure may cause the net hydrostatic pressure of a capillary

to be less than normal resulting in decreased net filtration pressure.

<h3>What is Pressure?</h3>

This is force applied to a body per unit area and it can be calculated by the

following below:

Pressure = Force/Area

When the net hydrostatic pressure of a capillary is less than normal, the

glomerular blood hydrostatic pressure (GBHP) decreases thereby resulting

in a corresponding decrease in net filtration pressure.

Read more about Filtration pressure here brainly.com/question/10035018

4 0
2 years ago
How does wet and dry barometer work?? Thnx
tatiyna

Wet barometer - The tool works by measuring atmospheric pressure to predict incoming weather. Since the glass is only filled halfway with water, the other half is exposed to the atmosphere. When the outdoor atmospheric pressure rises, the pressure in the glass decreases, and causes the water to move down the spout.

Dry barometer - A Torricellian barometer (sometimes called a mercury barometer) is an inverted (upside-down) glass tube standing in a bath of mercury. Air pressure pushes down on the surface of the mercury, making some rise up the tube. The greater the air pressure, the higher the mercury rises.

I hope this helps!

6 0
3 years ago
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