Leaves:a
represent a fairly small fraction of the overall metabolic budget for a plant.
b. depend on the roots to supply CO2.
c. are the main photosynthetic organ of most plants.
d. are the main site of water uptake in plants.
e. prevent CO2 and O2 from entering the plant.
C
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The term “2n” means
(a) the diploid chromosome number is present. (b) the haploid chromosome number is present. (c) chromosomes within a single nucleus exist in homologous pairs. (d) both a and c.
Metabolomics is based on the premise that ____
a. plant mitochondria are unique to harnessing ATP to develop alternative energy sources b. plant chloroplasts are unique to harnessing light for energy c. harnessing the 200,000 to 1 million different chemicals produced by plant metabolism for human needs is increasingly important d. plant metabolism is difficult to manipulate e. plant metabolism is simple to manipulate
What is a misconception about the Canada lynx and snowshoe hare cycling?
A) Canada lynx are the only predators on snowshoe hares. B) Snowshoe hares impact resource abundance. C) Snowshoe hare populations vary over time. D) Rodents compete with snowshoe hares for grasses.
The most commonly occurring mutation in people with cystic fibrosis is a deletion of a single codon. This results in _____
A) a base-pair substitution B) a frameshift mutation C) a polypeptide missing an amino acid D) a nonsense mutation