Alginates are used in many everyday products, including toothpaste and soap. When added to water, they form a thick gel that binds or emulsifies liquids. Alginates come from a group of multicellular stramenopiles that have one pigment that masks all

others and therefore gives these organisms a distinctive, dark color. Alginates are derived from

A) green algae.
B) brown algae.
C) water molds.
D) dinoflagellates.


Answer: B

Biology & Microbiology

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In ____ selection, individuals with a phenotype near the mean are favored over those at the phenotypic extremes

a. natural b. disruptive c. stabilizing d. directional e. frequency-dependent

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Which of the following is a fungus that commonly lives in the large intestine?

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Cell membranes are fluid, and thus proteins can diffuse laterally within the lipid bilayer. However, sometimes the cell needs to localize proteins to a particular membrane domain. Name three mechanisms that a cell can use to restrict a protein to a particular place in the cell membrane.

What will be an ideal response?

Biology & Microbiology