Which example of an evolutionary adaptation decreases herbivory?
A) Plants of the milkweed family produce a toxin that Monarch butterflies can store in their bodies.
B) Corn plants attacked by herbivores release an airborne chemical that turns on defensive genes in nearby corn plants.
C) Caterpillars that feed on plants tend to be green.
D) Damaged, partially eaten leaves can seal off the damaged area by hardening cell walls.
Answer: B
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This stage of the cell cycle is characterized by growth and it contains a checkpoint to verify that all of the DNA has been replicated prior to mitosis.
A. G1 B. S C. G2 D. Mitosis E. Cytokinesis
__________ produces the most amount of energy
a. Anaerobic metabolism b. Aerobic metabolism c. Carbon dioxide d. Oxygen
What is the process illustrated in this diagram?
a. asexual reproduction
b. apoptosis
c. quorum sensing
d. budding
Trees that lose only a few leaves at a time are
A. deciduous trees. B. carnivorous trees. C. maple trees. D. hickory trees. E. coniferous trees.