What does the "mosaic" part of the fluid mosaic model refer to?

a. the membrane cholesterol
b. the membrane functions
c. the membrane proteins
d. the membrane phospholipids


Answer: c. the membrane proteins

Biology & Microbiology

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The body of arthropods includes

(a) a head. (b) a thorax. (c) an abdomen. (d) all of the above.

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The type of muscle that typically surrounds hollow tubes and organs like the stomach is

A. skeletal muscle. B. smooth muscle. C. striated muscle. D. cardiac muscle. E. voluntary muscle.

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The degree of relatedness between a niece and an uncle is ____, and the degree of relatedness between first cousins is

____.

a. 0.75; 0.50 b. 0.50; 0.25 c. 0.25; 0.125 d. 0.125; 0.0625 e. 0.0625; 0.03125

Biology & Microbiology

Calico cats are never male because:a

recessive genes are not usually expressed on their X chromosome. b. male hormones prevent expression of the calico phenotype. c. two different X chromosomes are needed for the expression of the calico phenotype. d. two different Y chromosomes are needed for the expression of the calico phenotype. e. one X chromosome and one Y chromosome are needed for the expression of the calico phenotype.

Biology & Microbiology