BIOLOGY HIGH SCHOOL

An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?A. 17
B. 18
c. 35

Answers

Answer 1
Answer: B, 18 (mass number) - (atomic number) = neutrons in the nucleus

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A person exhibiting a recessive characteristic must be heterozygous for that gene. True or False

Answers

Answer:true

Explanation: cause heterozygous means that 2 or more of offspring genes are recessive

Why are the large intestines of a frog the length that they are?

Answers

Usually the length of the animals intestines are 3.5 the size of their own. The length of the frogs intestine is approximately 1.5 meters long. Usually frog's internal organs structures are closely the same as human. They have almost the same internal organs as us.

What planet is referred to as a gas giant

Answers

There are actually two planets referred to as gas giants which are Jupiter and Saturn. These two planets are made of mostly helium and hydrogen which makes them gas giants, while Uranus and Neptune have more ice and rock substances, so they are not considered gas giants.

A bird's wings are homologous to:a. an alligator's claws.
b. a fish's tail fin.
c. a dog's front legs.
d. a mosquito's wings.

Answers

A bird's wings are homologous to  a dog's front legs. Thus option C  is correct.

what is homologous structure ?

Homologous structures shows the same structure, but may have a different function or same function.

Homologous structures have a common ancestor, this structure is an organ or bone that's in common between different animals that demonstrates an anatomical structure indicating that the animals share a common ancestor.

This is in contrast to analogous structures where two unrelated animals have structures with similar forms or functions due to convergent evolution.

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A bird's wings are homologous to c. a dog's front legs.

Why might Turkey rank lower in the HDI indicator even though it has a high GDP?

Answers

Turkey may struggle to provide adequate education or health care, or it may have a lower life expectancy.

How do age structure diagrams illustrate population distribution?

Answers

They show population distribution based on age of the population. Its hows which age group is the most populated, and what the birth and death rate of the population are. 
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