A subordinate animal in a dominance hierarchy has limited access to food and mates. Why would he
remain in a social group that dominated him?
a. He is exhibiting altruistic behavior.
b. His chances of survival and reproduction are better in the group than alone.
c. He expects to become dominant in the future.
d. He does not know that it would be an advantage for him to leave.
e. Dominant group members will not allow him to leave.
B
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Why would a cell ferment rather than respire?
A. There's no oxygen present, and it cannot respire anaerobically. B. It lacks the ability to respire (i.e. no electron transport chain). C. There is no oxygen present and it cannot use anaerobic respiration OR it lacks the ability to respire (i.e., no electron transport chain). D. None of the above.
The type of skeleton that consists of fluid constrained within a layer of flexible tissue is a(n)
A. vascular canal. B. endoskeleton. C. gastrovascular cavity. D. exoskeleton. E. hydrostatic skeleton.
In codominant inheritance, ____
a. there is partial phenotypic expression of one member of a gene pair in the homozygous condition b. there is full phenotypic expression of both members of a gene pair in the heterozygous condition c. the interaction of two or more non-allelic genes controls a single phenotype d. two recessive alleles interact and express themselves as a single dominant trait e. the phenotype of a heterozygote is intermediate to those of the parents
What bird, due to human efforts, has been removed from the endangered species list and is now listed
as threatened? a. passenger pigeon b. dusky seaside sparrow c. hyacinth macaw d. bald eagle e. Carolina parakeet