The primary producers for hydrothermal vent ecosystems are

A. chemoautotrophs.
B. chemoheterotrophs.
C. phytoplankton.
D. cyanobacteria.
E. algae.


Answer: A

Biology & Microbiology

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Select the correct meaning for the following pedigree symbol.



A) Unaffected male
B) Unaffected female
C) Mating
D) Affected male
E) Affected female

Biology & Microbiology

Which of the following is a reason to graft

plants?

a. to maintain the quality of a plant b. to increase the hardiness of a plant c. to avoid plant diseases d. to produce seedless fruits e. all of these are reasons to graft plants

Biology & Microbiology

Which of the following is NOT a characteristic of

viruses? a. Contains DNA or RNA genetic material. b. Contains cytoplasm and ribosomes. c. Has a protein coat. d. Can only replicate inside a living host cell. e. Is very small.

Biology & Microbiology

Bioenergetics can be simply defined as

A) a subdivision of biology. B) applied thermodynamics. C) the units in which energy is expressed. D) the application of biological principles to physics. E) holding constant the variables in the universe.

Biology & Microbiology