Plant success on the terrestrial landscape is linked to the evolution of all of the following except
A. specialized roots.
B. stems.
C. specialized reproductive features.
D. increased area for photosynthesis in the leaves.
E. gas-filled air spaces.
E. gas-filled air spaces.
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What would you expect the optimum pH to be for the salivary enzyme amylase, which digests starches into sugars?
What will be an ideal response?
Which of the following is an example of sensory adaptation of receptors?
A) going into deep sleep B) distinguishing between different colors C) ignoring the shoes on your feet D) detecting sound and light simultaneously
Which of these provides the selection pressure maintaining sexual reproduction, according to the Red Queen hypothesis?
A. Sexual populations have only half the fitness of asexual populations. B. Females are able to choose males with superior genes. C. Pathogens of the sexual organism evolve to overcome the organism's defenses. D. Strains with different beneficial mutations are able to come together during recombination. E. Stabilizing selection maintains a 50:50 sex ratio.
In order to facilitate polymerization, monomers must be ________.
Fill in the blank(s) with the appropriate word(s).