At high altitudes, people with heart disease may experience
a. "the bends."
b. reduced breathing rate.
c. decreased production of red blood cells.
d. angina.
e. reduced hemoglobin concentrations.
D
Biology & Microbiology
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Amphibians can accomplish gas exchange using ____
a. gills only b. lungs only c. respiration through the skin only d. both gills and lungs e. gills, lungs, and respiration through the skin
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The structure that protects the eyeball is indicated by the letter ____
a. A b. B c. C d. D e. E
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Where are photosystems located?
A) chlorophyll B) thylakoid membrane C) mitochondria D) stroma
Biology & Microbiology
When Mendel crossed heterozygotes for flower color and seed color, what proportion of the offspring had both dominant phenotypes?
A) 1/3 B) 3/4 C) 1/16 D) 3/16 E) 9/16
Biology & Microbiology