What is not an adaptation to avoid overheating and desiccation?

a. A barnacle trapping water inside with calcareous plates

b. A mussel closing its shell at high tide.
c. A crab simply moving towards water.
d. An anemone covering itself with shell fragments.


b

Biology & Microbiology

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The molecule that functions as a corepressor for the trp operon is

A. glucose. B. cAMP. C. tryptophan. D. CAP. E. lactose.

Biology & Microbiology

Which process moves materials against a concentration gradient?

a. active transport b. dialysis c. facilitated diffusion

d. simple diffusion e. osmosis

Biology & Microbiology

Fungi and soil microorganisms provide ____ to ecosystems

a. provisioning services b. regulating services c. carbon sequestration d. hybridization e. support services

Biology & Microbiology

Fast neurons as described in lecture require cytoplasmic signal transduction to open an ion channel.

a. true b. false

Biology & Microbiology