If the regulation of hunger and thirst mechanisms goes haywire, the brain region that is most likely damaged is the
A. cerebrum.
B. cerebellum.
C. thalamus.
D. hypothalamus.
E. medulla oblongata.
D. hypothalamus.
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Humans are
a. mesotherms. b. exotherms. c. paleotherms. d. endotherms. e. hypertherms.
What specific type of P-type ATPase pumps H+ to acidify the stomach and is inhibited by proton pump inhibitor drugs used to treat excess stomach acid?
A) type 1 B) type 2 C) type 3 D) type 4 E) type 5
In eukaryotic cells, steroid hormones
A) bind to cytoplasmic receptors, are transported to the nucleus, bind DNA, and regulate gene expression. B) bind to cell surface receptors and send signals that result in regulation of genes in the nucleus. C) act as enhancers and bind to an assortment of activators and repressors. D) methylate DNA to regulate gene expression. E) cause maternal effect.
If the gene encoding the enzyme rubisco is mutated such that it is nonfunctional, the process that would be affected is the ability to
A. make ATP. B. fix carbon. C. harvest photons. D. make O2. E. make NADPH.