All chordates studied to date, except tunicates, share a set of _____
A) 13 Hox genes
B) 5 Dlx genes
C) 9 Otx genes
D) 7 FOXP2 genes
A
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Most ATP molecules are produced during which phase of aerobic respiration?
A) electron transport chain B) fermentation C) glycolysis D) Krebs cycle
What type of response is most associated with the brain sensing a cold environment? a. Decrease in blood flow to the skin
b. Heart rate decreasing. c. Increased respiration. d. Sweat glands increase their output. e. Increase in blood flow to the skin.
Symbiotic association in which one partner lives on or in another and metabolically depends on it iscalled:a
symbiosis. b. mutualism. c. commensalisms. d. parasitism. e. colonialism..
The original atmosphere of Earth is thought to have been rich in
a. CO2, N2, H2, H2S, and CO. b. CO2, N2, O2, Ar, and Ne. c. CO2, N2, O2, Rn, and Ne. d. CO2, N2, H2, Kr, and Xe.