The members of this lineage of Cnidarians exist only as polyps as adults. Many build calcium
carbonate exoskeletons and have a mutualistic relationship with photosynthetic protists
a. Hydrozoa
b. Scyphozoa
c. Trematoda
d. Cubozoa
e. Anthozoa
E
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Many female birds establish a pair bond with a single male with whom they build a nest and rear young. Many of those females, however, also copulate with other males outside the pair bond; the young they raise are fathered by more than one male
If we want to understand the role of genes and the environment in shaping this behavior, we want to understand its: A. causation. B. development. C. adaptive function. D. evolutionary history. E. genetic basis.
____ are responsible for separating
chromosomes during cell division.
a. Microfilaments. b. Intermediate filaments. c. Actin filaments d. Microtubules e. Microfibers
The process of filtration in the glomerulus is
driven by a. active transport. b. blood pressure. c. osmosis. d. dialysis. e. sodium-potassium pumps
Four of the five blood types listed below are related
by a common feature. Select the exception. a. A b. B c. AB d. Rh+ e. O