The Northern Hemisphere is most tilted toward the sun in _____
a. spring
b. summer
c. autumn
d. winter
D
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The presence of genes that encode many types of hemoglobin in mammals, but not in other vertebrates that evolved
earlier, is evidence of ____ of genetic material.
a. an inversion b. the duplication c. reciprocal translocation d. the deletion e. both duplication and deletion
Which of these is not a direct factor that controls biotic potential?
a. the age at which reproduction generally begins b. the resources available for each individual c. reproductive rate d. predators and pathogens e. genetic mutations
Tetracycline antibiotics are frequently included in commercial poultry feed. Why is the practice unwise for human health in the long run?
What will be an ideal response?
All of the following features are true of primates except
A. they have prehensile tails. B. they belong to the order containing lemurs, monkeys, and apes. C. they are mammals with grasping fingers and toes. D. they have binocular vision.