What type of bond holds the nitrogenous bases together?

A. Hydrogen

B. ionic

C. Covalent

How is waste removed from the cell? A.) bleeding B.) diffusion C.) leaking D.) none of the above

Which of the following is a difference between neutral energy balance and positive energy balance? Group of answer choices Energy intake increases during neutral energy balance, whereas energy intake decreases during positive energy balance.

Consider the biochemical pathway below, where A, B, and C are substrates and products and E1 and E2 are the enzymes that catalyze the reactions. If enzyme 1 (E1) is inactive, which of the following compounds will become deficient?

Plants have cells that contain chloroplasts. Why must their cells also contain mitochondria as well?

This paragraph attempts to explain the rain shadow effect, but it gets some of the facts wrong. Identify the inaccurate statements in the paragraph. The Mojave Desert provides a famous example of a rain shadow effect in the Sierra Nevada.

What type of reproduction results in offspring that are genetically different from the parents

In genetics is the mother x or y?

The "ball of the foot" normally carries about 40% of the weight of the body. What is the ball of the foot?

Why might a baby be born early if the mother smokes?

It is crucial that the process or mitosis is error free. this is because otherwise healthy cells can