Which of the following are cycled in an ecosystem?
a. carbon
b. heat
c. phosphorous
d. carbon and heat
e. carbon and phosphorous
E; Carbon and phosphorous are materials and therefore cycle. Heat is a form of energy and therefore does not cycle.
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What is a/are potential reservoir(s) for viruses?
A) water B) insects C) bats D) fomites
Which of the following have been an effective immunosuppressant for use in transplantation?
A. Amphotericin B and cephalosporin B. Amphotericin B and cyclosporin A C. Amphotericin B and tacrolimus D. Cephalosporin and tacrolimus E. Cyclosporin A and tacrolimus
The zygote goes through ____ to become a(n) ____
a. cleavage; blastula b. cleavage; gastrula c. zygote formation; embryo d. cleavage; egg e. fertilization; blastula
What feature of the island of Hawaii, after its
formation, most spurred the rapid speciation of colonizing birds? a. diversity of habitats b. lack of competitors c. climate conditions d. abundance of plant food sources e. abundance of insects for food