Which of these often serve as cell recognition molecules on cell surfaces?

A. peripheral proteins
B. transmembrane proteins
C. glycoproteins
D. integral proteins


Ans: C. glycoproteins

Biology & Microbiology

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A chemoorganotroph and a photoautotroph in the same environment would NOT compete for

A) oxygen. B) carbon. C) nitrogen. D) carbon and oxygen.

Biology & Microbiology

What is the term for the open water portions of the ocean?

a. benthic b. intertidal c. pelagic d. neritic

Biology & Microbiology

Ocean productivity is not: a. the amount of food marine organisms can produce

b. a leading field of research. c. the amount of organisms actually harvested each year by people. d. the number of organisms the ocean can support.

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The chromatids move toward opposite poles during ________ of mitosis

A) anaphase B) telophase C) metaphase D) prophase E) interphase

Biology & Microbiology