Most of the nitrogenous waste in the body is a result of:

A. fat metabolism

B. protein metabolism

C. carbohydrate metabolism

D. erythrocyte breakdown

Which is a soft, flexible supportive tissue that is replaced by bone during ossification?

What is a major challenge of current space exploration? A. developing bigger rockets B. setting a clear goal for the future C. sending unmanned probes to other planets D. securing international cooperation for missions

Define the word (Binomial name)

If a biologist wanted to analyze the evolutionary relationship in a gene that is found in both eukaryotes and bacteria, which of the following would not be useful?

Two most common minerals located in earths crust?

How might a strawberry plant depend on birds? A. The birds provide shade to the strawberry plant. B. The birds eat insects that would destroy the plant. C. The birds eat the strawberries so the plant cannot reproduce anymore. D.

Which phase occurs directly after G1? A. S phase B. M phase C. Cytokinesis D. G2

Which describes the correct pairing of DNA bases? O A. A with T, and C with G O B. A with A, and G with G O C. A with G, and C with T O D. A with C, and T with G

How to have self control over heart rate?

1. All of the following would result in a change in population size except A. emigration of individuals out of the population range. B. equal birth and death rates. C. immigration of individuals into the population range. D.