S-layer is:

A. the layer between inner and outer membrane in gram negative bacteria
B. also known as slime layer
C. common among archaea
D. there is more than one correct answer
E. made of polysaccharides


Ans: C. common among archaea

Biology & Microbiology

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A plant species where each plant can only make either male or female flowers is called a ____ species

and always has ____ flowers.

a. monoecious; complete b. dioecious; imperfect c. dioecious; complete d. monoecious; imperfect e. monoecious; perfect

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Which type of species are adapted to stable, predictable environments?

a. r-selected species b. s-selected species c. k-selected species d. j-selected species

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Mass is the measurement of

a. a line, extending from one point to another. b. the space an object occupies. c. the quantity of matter present in an object. d. the degree of hot or cold of an object.

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The suffix -emia means ________.

A. pertaining to B. tumor C. an inflammation D. blood E. a disease or morbid process

Biology & Microbiology