Alveoli are the respiratory surfaces of birds
Indicate whether the statement is true or false.
ANS: F, bronchi
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Explain why organisms undergoing rapid evolutionary change often contain relatively large numbers of mobile DNA elements, whereas once organisms settle into a stable evolutionary niche, most of these mobile elements are lost
What will be an ideal response?
The result obtained in Jacob and Monod's merodiploid analysis that suggested the lacO region acts in cis to regulate the lac operon was:
A. a nonfunctional lacI mutant is rescued by a wild-type lacI allele. B. a nonfunctional lacI mutant cannot be rescued by a wild-type lacI allele. C. a nonfunctional lacO mutant is rescued by a wild-type lacO allele. D. a nonfunctional lacO mutant cannot be rescued by a wild-type lacO allele.
f you consider the combined processes of photosynthesis and cellular respiration, the electrons found in H2O at the beginning of the light reactions end up attaching to ________ during respiration.
-O2 to make new H2O -NADPH to make new glucose -pyruvate to make ethanol -electron transport carriers to make O2 -none of the above
There is a general inverse relationship between DNA content and organismic complexity
Indicate whether the statement is true or false