In eukaryotes, mitochondria are the organelles primarily involved in:
A. export of enzymes.
B. lipid synthesis.
C. phospholipid assembly.
D. protein synthesis.
E. energy release/capture.
E. energy release/capture.
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Neurotransmitters are stored in vesicles located within axon terminals
Indicate whether the statement is true or false.
Peahens prefer to mate with peacocks that have the brightest and largest tail displays. The peacock’s tail is a
disadvantage to the males, because it is large and cumbersome and hinders them from escaping from predators. Given these facts, why isn’t the peacock’s tail selected against by natural selection?
a. peacocks lack the mutations to allow selection to work b. only a few peacocks have large tail displays c. in spite of the disadvantage, peacocks with larger tails leave more offspring d. it is selected against, but because a peahen gives birth to so many males, the population is not greatly affected e. peacocks do not reproduce sexually
The CAM pathway
a. involves only the Calvin-Benson cycle. b. involves only the C4 cycle. c. is used by plants in humid regions. d. is also known as photorespiration. e. needs day and night for completion.
Three of the following statements are correct. Identify the statement that is not correct regarding genetically modified organisms
A) There are no risks associated with GM crops. B) GM crops have been produced with increased nutrition. C) GM crops have been produced that are disease resistant. D) GM animals are not in our food supply.