Chemically or thermally modified toxins that are used for vaccination are called (adjuvants/antigens/toxoids).
Fill in the blank(s) with the appropriate word(s).
toxoids
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Which of the following statements is consistent with the principle of competitive exclusion?
A) Bird species generally do not compete for nesting sites. B) The random distribution of one competing species will have a positive impact on the population growth of the other competing species. C) Two species with the same fundamental niche will exclude other competing species. D) Even a slight reproductive advantage will eventually lead to the elimination of the less well adapted of two competing species. E) Natural selection tends to increase competition between related species.
Digger wasps orient using
A. pheromones. B. sight. C. magnetic fields. D. smell. E. sound waves.
An animal resting on a cold rock will undergo ________. a. thermal radiation b. evaporation c. None of these choices
d. convection e. conduction
The plural for genus is
a. genus. b. geni. c. genera. d. gena. e. genae.