A botanist discovers a new species of land plant with a dominant sporophyte, chlorophylls a and b, and cell walls made of cellulose. In assigning this plant to a phylum, which of the following, if present, would be LEAST useful?
A) endosperm
B) seeds
C) flowers
D) spores
D
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During the third stage of aerobic respiration,
electrons and hydrogen ions released by the reactions of the first two stages are picked up by a. photosynthetic enzymes and ATP. b. CO2 and H2O c. iron and glucose. d. NAD+ and FAD. e. none of these.
Hormones from the anterior pituitary gland are not secreted unless they are stimulated to be released by ________ from the hypothalamus
Fill in the blank(s) with correct word
An individual heterozygous for cystic fibrosis ________
A) cannot have children with cystic fibrosis B) is a carrier C) will have children who are all carriers of cystic fibrosis D) has cystic fibrosis
Effects that are dependent on the size of the population and regulate the growth of populations are called ________ effects.
A. density-independent B. demographic C. density-dependent D. K-related E. environmental resistance