BIOLOGY HIGH SCHOOL

Which of the following vertebrates are ectothermic?a.hummingbirds
b.newts
c.kangaroos
d.horses

Answers

Answer 1
Answer: The correct answer for the question that is being presented above is this one: "newts." The vertebrate that is ectothermic is a newt. A newt is a semiaquatic amphibian of the family Salamandridae, although not all aquatic salamanders are considered newts. Ectothermic is an animal that is dependent on external sources of body heat.

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Lakes and rivers constitute _______.a.87% of freshwater

b.a tiny fraction of Earth’s freshwater

c.a majority of Earth’s freshwater

d.a majority of water on earth

Answers

Perhaps surprisingly, lakes and rivers constitute a tiny proportion of the world's total freshwater, so answer (b) is correct. Most of the freshwater on our planet is in fact locked up in ice and glaciers, some 68%. The majority of the rest, 30%, is actually underground, in springs and other groundwater feeders. That leaves just 2% that makes up all the rivers, lakes, ponds and other visible freshwater reservoirs that we see in our day-to-day lives.

Answer:

B

Explanation:

On edge

What is abdominal cavity?

Answers

the abdominal cavity is set below the diaphragm and above the pelvic cavity.

it consists of most of the digestive organs such as the stomach, liver, gallbladder, intestines (part of the colon resides in the pelvic cavity), spleen
Basically a space that contains some of the following items in your body: 

1.) Colon
2.) Liver
Those are just some of the big things that your cavity holds! 

What differences would you expect to see in a population made up of individuals whose chromosomes experience crossing-over frequently compared with a population made up of individuals whose chromosomes do not cross over? Explain your reasoning.

Answers

For the answer to the question above asking what differences would you expect to see in a population made up of individuals whose chromosomes experience crossing-over frequently compared with a population made up of individuals whose chromosomes do not cross over? My answer is that I'd expect a larger gene pool and more diversity in the population whose chromosomes frequently cross-over or much more genetic variability. 
for example different phenotypes are most likely exhibited.

Answer:

theres more diversity in the population whose chromosomes frequently cross-over or much more genetic variability.  for example different phenotypes are most likely exhibited.

Explanation:

Why are chloroplasts absent in epidermal cells ?

Answers

the function of epidermis is to protect the leaf
make it air tight 
prevent water loss as it is waxy
also it is transparent and allows all light to enter...
   chloroplast is required for carrying out process of photosynthesis...
    as epidermis is not specialized to carry out photosynthesis... so it does not have any chloroplast...
Its function is protect leaves

Whats an entire group of muscles that work together called?

Answers

An entire group of muscles that work together is called a synergist.

22. What will most likely happen if a person does not consume the minimum daily requirements of carbohydrates?

Answers

Answer:

What will most likely happen if a person does not consume the minimum daily requirement of carbohydrates? The body will break down chitin from the bones. The body will break down glycogen from the liver. The body will break down glucose from the bloodExplanation:
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