Plate tectonics causes oceanic ridges to form where ____
a. continental plates collide
b. shallow seas dry up
c. magma rises through fissures in the sea floor
d. old oceanic crust sinks below continental crust
e. subduction uplifts continental crust
ANSWER: c
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Which period was unusually dry, giving seed plants an evolutionary advantage over previously dominant seedless plants?
a. Pennsylvanian b. Mississippian c. Permian d. Devonian
Geneticists discovered checkpoint genes involved in the cell cycle by studying the process in ____
a. yeast b. chytrids c. zygote fungi d. mycorrhizal fungi e. bacteria
Which of these is/are considered lateral meristem(s)?
a. apical meristems only b. vascular cambium only c. cork cambium only d. pericycle and periderm e. vascular cambium and cork cambium
A competitive inhibitor interferes with:
A. the oxidized site of the enzyme so a substrate cannot bind B. the active site of the enzyme so a substrate cannot bind C. the reduced site of the enzyme so a substrate cannot bind D. the allosteric site of the enzyme so a substrate cannot bind E. the repressor site of the enzyme so a substrate cannot bind