The diagram shows a food web.
Which is the producer?
O grass
o grasshopper
O mouse
fox
Shrew
Snake
Mouse
Grasshopper
Rabbit
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Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis. b. the primary role of microbes on the planet involves causing disease in animals and humans. c. microbes produce vitamins in the intestines. d. microbes play a role in breaking down waste and decomposing dead organisms.

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin