Parietal cells secrete:a
chyme and HCl.
b. pepsin and chyme.
c. pepsinogen and HCl.
d. HCl and intrinsic factor.
e. mucus and intrinsic factor.
d
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Atrioventricular valves separate:
A. the left atrium from the left ventricle and the right atrium from the right ventricle. B. the right atrium from the right ventricle. C. the left atrium from the left ventricle. D. the right and left ventricles. E. the aorta from the left ventricle.
The plant hormone ____ is primarily responsible for helping break the dormancy of seeds and buds
a. gibberellin b. cytokinin c. ethylene d. auxin e. jasmonate
Researchers develop the following ____________ : "Taking megadoses of thiamin is an effective way to prevent mosquito bites."
Fill in the blank(s) with correct word
Wikelski and Romero (2003) found that large marine iguanas had higher reproductive success than smaller iguanas did. However, the large iguanas were generally in poor body condition because they could not eat enough; at higher temperatures their foraging efficiency improved, allowing them to eat more. Thus, Wikelski and Romero hypothesized that iguana size will _____ as global warming gradually increases air and water temperatures in the Galápagos Islands.
A) increase B) decrease C) stabilize around the mean body size D) remain unchanged, it is not clear that body size increases fitness