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zubka84 [21]
3 years ago
13

Explain why a person might wear snowshoes when traveling long distances in deep snow

Biology
1 answer:
Olin [163]3 years ago
8 0
U need a snowshoe bc their feet might get cold and it will hurt. Also, without shoes, they will not be able 2 feel their feet bc they're so numb from walking in snow without snowshoes
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Estimating Population Size – Review the two approaches to estimating population size and answer the following questions.
Andre45 [30]

Answer:

b) there are 56 deer in 1000 acres of area.

Explanation:

If a person has 1000 aces of land and a local wildlife biologist tell him that on every 18 acres only one deer is present so in 1000 acres there are 56 deer are present.

calculation;

1 deer ------ 18 acres

x --------- 1000 acres

by cross multiplication, we get

18 x = 1000

both side divided by 18, we get

x = 55.5

by rounding off we get

x = 56

3 0
3 years ago
What part of a vertebrate's brain is the center for thinking and complex behaviors?
aliina [53]
Frontal lobe because its where decisions are made and behaviors are choices (in most cases). 
4 0
3 years ago
Which of the following is correct about the polyadenylation mechanism?
ozzi
Just as stated and also explained, the correct answer is <span>a long chain of adenine nucleotides is added to the 3' end of mRNA during terminationof transcription. That is the only statement that is true about the polyadenylation mechanism. Hope this is helpful</span>
4 0
3 years ago
Read 2 more answers
A velocity-time graph shows how<br> I<br> changes over<br> time.
stich3 [128]

Answer:

What does a linear velocity graph tell us?

The principle is that the slope of the line on a velocity-time graph reveals useful information about the acceleration of the object. If the acceleration is zero, then the slope is zero (i.e., a horizontal line). If the acceleration is positive, then the slope is positive (i.e., an upward sloping line).

What is an acceleration time graph?

A graph that shows acceleration plotted against time for a particle moving in a straight line. ... The acceleration-time graph is the graph y=a(t), where the t-axis is horizontal and the y-axis is vertical with the positive direction upwards.

graph shows changes in velocity of a moving object over time. The slope of a velocity-time graph represents acceleration of the moving object.

Explanation:

Download docx
6 0
2 years ago
Two species of closely related frogs are found in the same pond high in the Andes of South America. Both species only have teeth
IgorLugansk [536]

Complete question:

Two species of closely related frogs are found in the same pond high in the Andes of South America. Both species only have teeth on the top jaw. One has small teeth for holding small live prey prior to swallowing. The other species has very large sharp teeth for injuring and killing large prey prior to biting off pieces of flesh for consumption. The above is an example of:

  • Directional selection
  • Analogous structures
  • Character displacement
  • Hybridization
  • Vestigial structures

Answer:

  • Character displacement

Explanation:

Competition is an ecological and evolutive process very common in nature. Competition might be intra- or interspecific. Competition between different species in a community or ecosystem might be due to the same resource use, or the same territory, shelter, etcetera. When a resource is useful for two or more species, and limited, they compete to gain it.

The principle of competitive exclusion states that different species with the same requirements sharing the niche can not coexist indefinitely based on the same limited resource. When <u>two competing species coexist, this is because of niche partitioning or niche differentiation</u>.

Differentiation of effective niche is closely related to <u>character displacement.</u>

<u>Character displacement</u> is the result of interspecific competition, in which two or more species that live in the same habitat manage to avoid competition by developing different traits. Morphological divergence, or any adaptative trait development, fixated genetically, is the product of niche segregation. Species tend to differentiate morphologically in the presence of strong competitors. Traits divergence favors coexistence in the same place.

In the exposed example, both species live in the same pond. But to avoid competition and competitive exclusion, species developed different teeth sizes to feed on different prey items.  

8 0
2 years ago
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