How do ectothermic (cold-blooded) animals make use of water's temperature-stabilizing effects?
What will be an ideal response?
These animals will bask in the sun to increase their temperature, as water in their bodies heats enough to perform their daily functions. Once they are warm enough, they can move about in either sun or shade, feeding, mating, etc. Their bodies will cool off slowly because water is a good heat sink. Since temperature changes of water are rather slow, they are also slow to overheat in the sun.
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Genetic drift can eliminate alleles from a population more quickly than natural selection
a. True b. False
Relative to the mRNA, which of the following moves during translocation?
a. attached tRNAs and the ribosome b. attached tRNAs and the polypeptide chain c. the ribosome only d. the ribosome and the polypeptide chain e. the polypeptide chain only
If you were asked to separate the reptiles from birds on the chordate family tree, which characteristic would you use?
1.flight
2.nurse young
3.endothermic
4.teeth
Give examples of how plants and animal pollinators have coevolved. What will be an ideal response?