Crude oil is composed of: a. Fatty acids c. Metal oxides b. Hydrocarbons d. Halogens

I am a neurotransmitter mainly involved in mood, appetite, sleep, and impulsivity. A large body of research says that I am strongly implicated in depression. What is my name?

What is the difference between respiration and cellular respiration?

1. The change of R-form bacteria into S bacteria is known as a. protein synthesis b. translation c. the transforming principle d. the conjugating principle

What are enzymes and how do they affect biological reactions

Describe hominid evolution

When a bird eats a small insect it can be considered a secondary consumer but what is the bird considered as when it eats seeds?

Desert animals, such as the kangaroo rat, need to conserve water. These animals have larger kidneys than do animals that live in moist environments and thus need not conserve water.

What is the function of a nucleus in a cell the nucleus A. controlls the cells activity B. the nucleus identifies the cell as belonging to a plant C. the nucleus determines what substances enter and leave the cell D.

Which best describes emerging scientific ideas? a. never been tested b. unpublished c. supported by most, but not all, scientists d. not studied by many scientists

A sonic boom is produced by a jet. What can you determine about the jet's motion? a) It is near a mountain where echos can be produced b) Its engines produced backfire c) It is increasing in altitude d) It is traveling faster than the speed of