Hermaphroditic earthworms reproduce sexually by connecting their bodies by their __________. This
allows transfer of __________ from one worm to the other.
A. setae; zygotes
B. setae; eggs
C. setae; sperm
D. clitellum; eggs
E. clitellum; sperm
E
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According to MacArthur and Wilson's theory of island biogeography, both the land area (size) of an island and the _____________________ contribute to species diversity
A. depth of the water surrounding the island B. distance of the island from neighboring land masses C. rock composition of the island D. climate of the island E. proximity of the island to the equator
How was the approach taken by Mendel similar to the approaches taken by modern scientific inquiry?
A) Mendel repeated his experiments. B) Mendel examined both continuous and discrete traits. C) Mendel used the same technical methods that are used today. D) Mendel's experiments challenged no hypotheses that were favored at the time.
Describe the water vascular system of echinoderms such as sea stars
What will be an ideal response?
Two types of mechanisms that help transport small molecules in animal cells are ___ and _____.
Fill in the blank(s) with the appropriate word(s).