Most of the molecules in cell membranes are

a. proteins.
b. carbohydrates.
c. lipids.
d. phospholipids.
e. nucleic acids.


D

Biology & Microbiology

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Taste buds detect

(a) light. (b) atmospheric sound waves. (c) chemicals in food and drink. (d) movements of the head.

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Which of Mendel's laws explains why the segregation of alleles for a gene on one chromosome does not influence the segregation of alleles for a gene on another chromosome?

A. law of population dynamics B. law of segregation C. law of random fertilization D. law of crossing-over E. law of independent assortment

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Plant cells

A) lack mitochondria and chloroplasts. B) lack mitochondria but have chloroplasts. C) have mitochondria but do not have chloroplasts. D) have mitochondria and chloroplasts.

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Which of the following terms refers to microbes that thrive in high-salt environments?

A) neutralophiles B) acidophiles C) barophiles D) psychrophiles E) halophiles

Biology & Microbiology