Darwin believed that the many kinds of finches present on the Galapagos Islands all arose through_____
a. inheritance of acquired traits
b. divine creation in their present form
c. diversification from a single common ancestral species
d. descent from a group of similar finch species that arrived on the islands earlier
c
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Glucose is absorbed through the membranes of
the small intestine primarily by a. osmosis. b. bulk flow. c. transport proteins. d. endocytosis. e. facilitated diffusion
A(n) ____________________ is a large-scale community of organisms in a major ecological setting. Fill in the blank(s) with the appropriate word(s)
What is a disadvantage to having an exoskeleton?
a. Exoskeletons interfere with ingestion. b. Exoskeletons severely limit locomotion. c. Exoskeletons do not prevent desiccation. d. Exoskeletons do not provide adequate protection from predators. e. Exoskeletons must be shed when the animal grows, exposing the animal to predators.
When a ________ enters a host cell, it loses the outermost protein layer and is then referred to by virologists as a double-layered particle (DLP).
Fill in the blank(s) with the appropriate word(s).