Which plant structure is responsible for gas exchange?
a. stroma
b. stomata
c. thylakoid
d. grana
e. stromal lamellae
ANSWER: b
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Indicate whether the statement is true or false.
Does the average mutation rate in humans accurately describe the pattern of mutations across the genome? Select all that apply
A. No. Some sites (hotspots) are more mutable than others. B. No. Mutation rates differ between males and females. C. No. Mutation rates differ between germ cells and somatic cells. D. No. Mutations rate vary with age. E. No. Mutation rates vary with location - they are higher in some parts of the world than in others.
Gingivitis occurs when tooth decay causes inflammation of the enamel and pulp of the tooth
Indicate whether the statement is true or false
At the end of meiosis I, the two cells are both diploid. If false, please explain why.
a. true b. false