In natural selection, what is the selective agent?

What is true of stomata? They take in oxygen and release carbon dioxide. They take in water and release carbon dioxide. They take in carbon dioxide and release oxygen. They take in water and release oxygen

Suppose you are an astronomer, and a child asks you to explain the organization and structure of the universe. In your own words, describe the matter found in the universe and the relationship between stars, galaxies, and planets

Imagine that a disorder that causes the cell cycle to stop affects the muscle cells of a frog's leg. What consequence is most likely to follow? a. The frog will not be able to hop using that muscle. b. An injury to the muscle will not heal. c.

Which statement best explains how enzymes speed up chemical reactions? Question 15 options: A. Enzymes gain heat from chemical reactions. B. Enzymes use light energy to speed up chemical reactions. C.

How have scientific advancement led to an increase in food safety

How many chromosomes does a human skin cell have?

Suppose you had a hypothesis you believed to be correct. What should you do to make it become a theory?

Which part of the scientific cycle does the graph directly represents

plants contain lignified conducting cells.

What do male and female gametophytes produce, respectively?