The universal response when a ligand binds to a receptor is the ligand falls off.

a. true
b. false


Answer: b. false

Biology & Microbiology

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What cytoskeletal protein is important to the function of the sperm cells illustrated in Figure 11.13?

A. microfilaments B. intermediate filaments C. microtubules D. All of the above are correct.

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The loss of water vapor from aerial plant parts is called evapotranspiration

a. True b. False

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The epidermis of a nematode is derived from the:a

endoderm b. mesoderm c. ectoderm d. epithelium e. mesenchyme

Biology & Microbiology

What hormone stimulates the production of cortisol?

A. gonadotropic hormone B. growth hormone C. adrenocorticotropic hormone D. antidiuretic hormone E. thyroid-stimulating hormone

Biology & Microbiology