Elements and compounds are recycled in Earth's systems through Earth cycles. Living organisms play a vital role in these cycles. Bacterial decomposers play the most vital role in Earth's () cycle.

A. water

B. carbon

C. nitrogen

Is public speaking an internal or external stimulus?

Shedding of the exoskeleton is called a. molting. b. bolting. c. incision. d. extrasensation

How much power is needed to do 648 joules of work in 100 seconds?

Synapses ... a) are found only in the central nervous system b) carry electrical signals along the length of an axon c) are gaps between neurons where chemical signals are used to transmit information d) allow electrical signal to jump between

What type of dating did scietist use to determine the earths age

Using water more effectively A. Protects the environment B. Causes the loss of natural pollution filters C. Increases with contamination D. All of the above

2. The name given to energy stored in food is A. glycolysis. B. a matrix. C. a calorie. D. fermentation.

How are capillaries involved in gas exchange

The specific receptors responsible for rotation found in the semicircular canals is called a. Ampulla b. Vestibule c. Auricle d. Saccule e. Crista

Penicillin is hydrolyzed and thereby rendered inactive by penicillinase (also known as b-lactamase), an enzyme present in some penicillin - resistant bacteria. the mass of this enzyme in staphylococcus aureus is 29.6 kd.