One way bacteria are important to the Earth and its ecosystems is that

a. bacteria concentrate valuable minerals.

b. bacteria decompose dead organisms.

c. bacteria produce acetone.

d. bacteria use oxygen.

What role does the stomach play in decontaminating incoming food materials?

Animals Experience: A) Only REM sleep during mating season. B) Sleep cycles in which REM sleep alternates with slow-wave NREM sleep. C) Global brain deactivation during sleep and do not dream. D) Only experience NREM sleep.

Which type of tissue performs the role of signal conduction in the body? A. Connective tissue B. Epithelial tissue C. Muscle tissue D. Nervous tissue

Molten material cools and forms igneous rocks. Lava flows from a volcano.

What problems can an algal bloom cause in an ocean?

As a seedling, the strangler fig and host tree have a relationship that is described as commensalism. Why is commensalism a good description for this relationship?

Glycogen is stored in the body for future use. if it is drawn upon, it will

What do ribosomes do?

A trapezoid has an area of 75 square inches, and its two bases are 8 and 17 inches long. Find the height of the trapezoid.

What events are associated with chemiosmosis in chloroplasts?