In most land ecosystems, ____ food chains predominate

a. decomposer
b. detrital
c. producer
d. consumer
e. grazing


ANSWER: b

Biology & Microbiology

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Match each description below with the cell type it characterizes: a. melanocyte b. keratinocyte c. fibroblast

_______ Major cell type found in the dermis; its primary function to secrete extracellular matrix. _______ Found in the epidermis; its primary function is production of pigments to color skin. _______ Major cell type found in the epidermis; its primary function is to protect underlying tissues and organs. What will be an ideal response?

Biology & Microbiology

When a plant reaches sexual maturity, the genes that control the production of __________

are inactivated and the genes that control __________ are activated.

a. flowers; leaves b. flowers; roots c. leaves; flowers d. leaves; roots

Biology & Microbiology

Beneficial bacteria that synthesize vitamin K and some of the B vitamins are an important part of our digestion. The part of the digestive system where these bacteria are found is the ________

Fill in the blank(s) with correct word

Biology & Microbiology

Carbon first becomes part of a living thing as a result of 

A. nitrogen-fixing bacteria. B. decomposer organisms. C. photosynthesis. D. aerobic respiration.

Biology & Microbiology