Which of the following convert atmospheric nitrogen to ammonium?

A) nitrifying bacteria
B) nitrogen-fixing bacteria
C) mycorrhizae
D) ammonifying bacteria


B

Biology & Microbiology

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Which of the following would you classify as something other than an animal?

A) sponges B) coral C) jellyfish D) choanoflagellates

Biology & Microbiology

Tendons and ligaments are made of:

a. loose connective tissue b. dense regular connective tissue c. dense irregular connective tissue d. cartilage e. collagen

Biology & Microbiology

This animal has the fewest genes, the simplest

body plan, and only four cell types. It is a

a. planarian. b. placozoan. c. annelid. d. roundworm. e. sponge

Biology & Microbiology

The phenomenon of microbial antagonism can be explained by

a. certain normal biota directly kill other species by phagocytosis b. normal biota members change the chemical environment making it hostile to other species c. the immune system only recognizes certain species for destruction d. there is limited space for occupation in or on certain areas of the human body

Biology & Microbiology