Squamata includes _____.
a) crocodiles and alligators
b) turtles
c) tuataras
d) lizards and snakes
Ans: d) lizards and snakes
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The Dust Bowl of the 1930s was the result of destruction of ____
a. deserts b. chaparrals c. tallgrass prairies d. short-grass prairies e. temperate deciduous forests
Closely linked genes nearly always end up
a. crossing over. b. assorting independently. c. in the same gamete. d. segregated during meiosis. e. inverted.
An example of secondary succession is
A) grasses colonizing sand dunes. B) lichens colonizing a rock. C) weeds colonizing a volcanic lava flow. D) crabgrass colonizing an abandoned wheat field.
Approximately how many genes are present in the human genome?
A) 3 billion genes B) 20 billion genes C) 100,000 genes D) 20,000 genes E) 50,000 genes