In the C3 pathway, where does the carbon come from to form glucose?
A) Atmospheric CO2
B) Water
C) ATP and NADPH
D) Chlorophyll
E) Enzymes
A
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The cell walls of fungi are composed of:
A. chitin B. cellulose C. dentine D. peptides E. glycerol
Refer to Figure 47-1. The root of the tooth is made up of the parts labeled:
a. 4 and 5 only
b. 3, 4, and 5 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4 only
e. 1, 2, 3, 4, 5
The side toes of a horse, the pelvis of the whale, and the human appendix are all examples of structures that resemble structures of presumed ancestors, which are known as
A. acquired structures. B. homologous structures. C. homeotic mutations. D. developmental structures. E. vestigial structures.
Which of these is associated with pre-embryonic development?
A. embryonic disk B. formation of the umbilical cord C. primary germ layers D. gastrulation E. morula