Because energy transfer is not 100% efficient across trophic levels, a maximum of about _____% of energy and biomass available at one trophic level is available at the next
A. 1
B. 5
C. 10
D. 15
E. 20
C
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Density-independent factors that limit population
growth include a. parasites. b. temperature. c. disease. d. competition. e. predation.
Assume that a dihybrid cross is made in which the genes' loci are autosomal, independently assorting, and incompletely dominant. How many different phenotypes are expected in the offspring?
What will be an ideal response?
Which of the following is an appropriate scientific hypothesis?
A) Bad people catch more colds than good people. B) Cold viruses should be allowed to reproduce just like anything else. C) It is unethical to go to school when you have a cold. D) People catch colds because of exposure to cold temperature.
________ include cells that can function either independently or as a single unit
A) Dinoflagellates B) Forams C) Seaweeds D) Cellular slime molds