1. What is a population? Select one: a. a group of organisms that occupy the sam

ID: 86595 • Letter: 1

Question

What is a population?

Select one:

a. a group of organisms that occupy the same general area

b. a group of individuals of a single species that occupy the same general area

c. all of the organisms of a single species existing at a particular time

d. a group of individuals of a single species that occupy the same general area and all the abiotic factors that affect them

Dinosaurs (aside from the lineage that produced birds) were extinct by the end of the ______.

Select one:

a. Eocene

b. Permian

c. Silurian

d. Cretaceous

Why is water considered a polar molecule?

Select one:

a. Both hydrogens are at one end of the molecule, and oxygen is at the other end.

b. The oxygen atom attracts the hydrogen atoms.

c. The oxygen end of the molecule has a slight negative charge, and the hydrogen end has a slight positive charge.

d. The oxygen is found between the two hydrogens.

How does RNA differ from DNA?

Select one:

a. RNA is a polymer of amino acids; DNA is a polymer of nucleotides.

b. RNA is double-stranded; DNA is single-stranded.

c. In RNA G pairs with T; in DNA G pairs with C.

d. RNA contains uracil; DNA contains thymine.

In the oceans, global warming has ______.

Select one:

a. made the water more basic

b. decreased the amount of oxygen available

c. made the water more acidic

d. benefited corals

1. D is the correct answer

2. D is the correct answer

3 C is the correct answer

4 D is the correct answer

5. C is the correct answer

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