Which two reasons do marine animals make sounds underwater?

a. to seek out mates b to imitate humans

c. to ward off predators

d. to create music

e. to attract prey

Diatoms have a cell wall made of two halves called valves. nuclei. thylakoids. none of the above

Our body temperature will stay around 98.6 degrees, even when it is hot or cold outside. This is an example of: A. A behavioral adaptation B. Structural Adaptation C. Homeostasis D. Equilibrium

A spinal nerve belongs to what division of the nervous system?

RNA transfers the DNA code from the

What kind of energy do all cells need to survive

What are the benefits of geothermal and oil-and-gas forms joining forces?

Which class of immunoglobulins sensitizes cells to allergens?

Which statement about somatic mutations is true? A. They exist in all the cells of the body. B. They are acquired through exposure to mutagens. C. They are inherited via sperm and egg cells. D. They are passed on to offspring.

In year three the farmer discontinue the use of the insecticide Which statement would best predict the population in generation 4

What happens to carbon atoms during cellular respiration or fermentation?