Ectothermic animals
a. commonly have fur or feathers to minimize heat
loss.
b. shun the sun during the daylight hours.
c. are more adapted to cold.
d. use behavioral adjustments for temperature
regulation.
e. fit all of these descriptions.
Answer: d
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At the conclusion of mitosis, each daughter cell has ____
a. twice the amount of DNA and half the cytoplasm of the parent cell b. DNA identical to the parent cell c. half the DNA and half the cytoplasm found in the parent cell d. twice the cytoplasm and the same amount of DNA as the parent cell e. DNA genetically different from the parent cell
The density of air increases with:
a. increasing temperature. b. decreasing pressure. c. increasing moisture. d. decreasing moisture.
The majority of carbon dioxide carried in the blood is found in which form?
a. dissolved in plasma b. bound to hemoglobin c. converted to bicarbonate d. converted to oxygen e. bound to the respiratory membrane
How does polyploidy differ from aneuploidy?
A. Polyploidy involves diploid chromosome sets, while aneuploidy involves haploid sets. B. Polyploidy involves changes in entire chromosome sets; aneuploidy involves less than a diploid set of chromosomes. C. Polyploidy involves monosomy; aneuploidy involves trisomy. D. Polyploidy is produced by translocations; aneuploidy by nondisjunction. E. None of these is a difference between polyploidy and aneuploidy.