What is contained in the coelom?

a. ingested nutrients and digestive enzymes
b. primarily the epidermis, dermis, and hypodermis
c. most of the organism’s organs
d. undigested waste material


c. most of the organism’s organs

Biology & Microbiology

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In the process of bacterial transformation, how are the plasmid-containing bacteria identi?ed?

What will be an ideal response?

Biology & Microbiology

The alternate name for the mitral valve is

a. the left atrioventricular valve. b. the aortic semilunar valve. c. the tricuspid valve. d. the right atrioventricular valve. e. the pulmonary semilunar valve.

Biology & Microbiology

Thucydides is known as the father of_______________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Why is it so difficult to kill acid-fast bacteria?

A) They are just as difficult to kill as Gram-positive bacteria. B) The acid in the bacteria denatures most antibiotics before they can work. C) Mycolic acid makes it very difficult for nutrients and gases to enter or exit cells. D) The bacteria are very motile and can travel to areas with a lower concentration of hazardous chemicals. E) The bacteria are able to quickly break down several types of antibiotics before the concentration can reach dangerous levels.

Biology & Microbiology