The LEAST hydrophilic substance is

A. salt.
B. an ion.
C. oil.
D. an amphipathic molecule.
E. a gas.


C. oil.

Biology & Microbiology

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Listeria monocytogenes is a species of rod-shaped bacteria. How would L. monocytogenes be affected if its actin-like cytoskeletal proteins were no longer functional?

A. It will be less efficient at exchanging materials with its environment. B. It will be able to store more nutrients. C. It will be able to secrete mucilage and aggregate as part of a biofilm. D. It will no longer be able to undergo binary fission for reproduction. E. It will become a spirochaete.

Biology & Microbiology

Four of the five structures listed below produce

components of semen. Select the exception. a. epididymis b. prostate c. seminal vesicle d. bulbourethral gland e. testes

Biology & Microbiology

The "cuddle hormone," secreted in greater quantities following sexual contact, is

a. testosterone. b. estrogen. c. follicle stimulating hormone. d. melatonin. e. oxytocin.

Biology & Microbiology

In stratified epithelium, such as the epidermis of the skin, cell division occurs

A) in the cells at the base layer only. B) in the surface cell layer only. C) throughout all the layers. D) in the basement membrane only.

Biology & Microbiology