Photorespiration
A. requires CO2.
B. occurs in C4 plants.
C. uses the enzyme PEP carboxylase rather than rubisco to produce 3-phosphoglycerate.
D. uses a 3-carbon sugar precursor to produce oxygen.
E. tends to occur under dry and hot conditions.
Answer: E
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Which statement describes a primary mutant screen?
A) A researcher uses CRISPR to create mutations in mouse homologs of three genes that function in heart development in the fruit fly. B) A scientist uses RNAi to simultaneously knock down the expression of two genes in C. elegans to determine whether they function redundantly. C) A scientist examines a large number of mutagenized zebrafish embryos for abnormalities in blood vessel formation. D) A researcher treats a large number of Arabidopsis plants with different chemicals to determine which chemicals inhibit plant growth.
Small, plate-like structures found on fish
A) operculate B) scales C) mucosal caps D) plaques
The arrangement of organs and tissues in their characteristic places in three-dimensional space defines
A) pattern formation. B) induction. C) differentiation. D) determination. E) organogenesis.
In rodents, horses, and lagomorphs, the digestion of cellulose takes place in the
A. cecum. B. anus. C. mouth. D. stomach. E. large intestine.