Oversecretion of growth hormone in childhood results in
a. pituitary gigantism.
b. acromegaly.
c. pituitary dwarfism.
d. diabetes insipidus.
e. cretinism.
A
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Connell conducted this experiment to learn more about _____
A) character displacement in the color of barnacles B) habitat preference in two different species of barnacles C) desiccation resistance and barnacle species D) how sea-level changes affect barnacle distribution E) competitive exclusion and distribution of barnacle species
The plasma membrane is a thin sheet of lipid embedded with
A. proteins. B. carbohydrates. C. polymers. D. nucleotides. E. sodium and potassium ions.
Amphibians often use ____ as a respiratory surface
a. skin b. a tracheal system c. internal gills d. external gills e. scales
What substance will release hydrogen ions when its concentration is low, and accept them when its concentration is high?
1.salt 2.acid 3.base 4.buffer 5.alkali