The glottis is ____ when swallowing and ____ when speaking

a. closed; open
b. open; closed
c. rigid; relaxed
d. relaxed; rigid
e. vibrating; closed


ANSWER: a

Biology & Microbiology

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Five hundred minnows consume 1000 kilograms of algae over a four-month period. Five bass consume these 500 minnows over a period of two weeks. Louisa catches and eats the bass. How much of the original 1000 kilograms of algae would you expect to become the biomass of Louisa?

a. 1 b. 10 c. 100 d. 1000 e. 10,000

Biology & Microbiology

The rough endoplasmic reticulum is so called because ____ stud the surface of that organelle.

a. carbohydrates b. ribosomes c. Golgi bodies d. proteins e. lysosomes

Biology & Microbiology

Match the following items with the correct phrases.

_______1. A monomer; the most common type of immunoglobulin; very high levels are produced in the secondary (anamnestic) response to an antigen. _______2. A pentamer; five monomers linked together by a J-chain; the first type of immunoglobulin to be formed in the primary response to an antigen. _______3. A monomer; present on the surface of mast cells and basophils. _______4. A dimer; two monomers linked together by a J-chain; frequently found in mucous membranes. _______5. Produced by atopic individuals in response to allergens. a. IgA b. IgD c. IgE d. IgG e. IgM

Biology & Microbiology

Dependence on animal for fertilization and dispersal is characteristic of many species of:

a. ferns b. angiosperms c. mosses d. conifers e. cycads

Biology & Microbiology