Which of the following is not a characteristic of any animal?
a. locomotion at some time during the life cycle
b. multicellular eukaryotes
c. heterotrophic
d. sexual reproduction involving motile sperm
e. share a common body plan
E
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Which codon halts ribosomes?
A) UAG B) AUG C) UUU D) ATG
F+ X F- mating does not result in
a. plasmid genetic recombination. b. chromosomal genetic recombination. c. circularization of DNA. d. conjugation. e. cell-cell contact via a sex pilus.
In ecosystems, primary consumers are:
a. herbivores b. carnivores c. scavengers d. decomposers e. detritivores
Figure 1.4
In Figure 1.4, "A" and "B" should be labeled, respectively, ____ and _____.
A. consumers; producers B. decomposers; producers C. producers; redistributors D. producers; consumers E. consumers; decomposers