The best terms for a fish whose body temperature varied between 4oC during the day when it is in deep, cold ocean waters and 26oC during the night when it comes to the surface to feed would be
A. ectothermic and endothermic.
B. endothermic and homeothermic.
C. ectothermic and homeothermic.
D. ectothermic and heterothermic.
E. endothermic and heterothermic.
Answer: D
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Cytoplasmic inheritance refers to genes found in ____
a. sex chromosomes b. mitochondria and chloroplasts c. viruses d. bacteria e. linkages
The convergence in external morphology of sharks, penguins, and porpoises is attributed to
a. reduced genetic variability in these groups. b. selection pressures that are common to these groups. c. reproductive isolation of these groups. d. identical genes in all three groups. e. use and disuse of the limbs.
Synapsis. What phase in Meiosis does this occur?
What will be an ideal response?
Biodiversity considers
A) the genetic diversity within and between populations of a species. B) the fate of water in an ecosystem. C) commensal relationships between species. D) the relationships of individuals to a food chain.