What is the location and function primary feathers?
a. wing tips, provide lift
b. inner wing, provide thrust
c. wing tips, provide thrust
d. inner wing, provide lift
c. wing tips, provide thrust
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The fact that regeneration is a common type of reproduction in sea stars suggests that
A. sea star populations have high levels of genetic diversity. B. all sea stars are haploid. C. sea stars have almost no predators. D. adult sea star cells retain the mechanism to form a complete animal.
Oviparous animals ____
a. lay eggs that contain the nutrients needed for development of the embryo outside the mother’s body b. retain the embryo within the mother’s body and nourish it at least through early embryo development c. have a specialized temporary structure, the placenta, which connects the embryo to the uterus during development d. retain fertilized eggs within the body, where the embryo develops using the nutrients provided by the egg e. have mature egg-producing and mature sperm-producing tissue present in the same individual
If a mutated DNA sequence produces a protein that differs in one central amino acid from the normal protein, which of the following kinds of mutations could have occurred? View Available Hint(s) If a mutated DNA sequence produces a protein that differs in one central amino acid from the normal protein, which of the following kinds of mutations could have occurred?
a. A deletion mutation. b. An addition mutation c. None. d. An addition mutation and a deletion mutation.
The range of shapes found among members of a taxon may be thought of as a multidimensional space called a(n) ________
Fill in the blank(s) with correct word