Which statement below is true?
A) The only internal membrane of a cell that is similar to the plasma membrane is the nuclear membrane.
B) All internal membranes of a cell are just giant invaginations from the plasma membrane.
C) Vesicle membranes degrade as they fuse with the plasma membrane during exocytosis.
D) All internal cell membranes are similar in structure to the plasma membrane.
Answer: D
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PBDEs have not been linked directly to cancer in test animals
a. True b. False Indicate whether the statement is true or false
An acoelomate is an animal that
A. has a coelom. B. has a pseudocoelom. C. has both a coelom and a pseudocoelom. D. has neither a coelom nor a pseudocoelom. E. has a coelom during early development but later loses it.
Large molecules that are formed by combining smaller molecules and are biologically significant are referred to as what?
a. DNA b. macromolecules c. monomers d. polymers
Serological tests should have low sensitivity and specificity.
a. true b. false