Land plants are believed to have evolved from

a. mosses.
b. ferns.
c. charophytes.
d. fungi.


d

Biology & Microbiology

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The force necessary to fill the lungs in a mammal is provided by the

A. diaphragm. B. intercostal muscles. C. buccal muscles. D. diaphragm and buccal muscles. E. diaphragm and intercostal muscles.

Biology & Microbiology

The principal place in the human ear where sound waves are amplified by means of the vibrations of tiny bones is the:

a. pinna b. ear canal c. middle ear d. organ of Corti e. inner ear

Biology & Microbiology

There are ___ different kinds of amino acids

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

Biology & Microbiology

The term for physical damage to a seed coat that induces germination is:

a. imbibition. b. scarification. c. bolting. d. vernalization. e. thigmomorphogenesis

Biology & Microbiology