Other than predation by introduced Nile perch, the most likely explanation for the recent decline in cichlid species diversity in Lake Victoria is _____
A) reinforcement
B) fusion
C) stability
D) polyploidy
B
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LUCA is
A) the last universal common ancestor. B) the individual ancestor of each of the three domains. C) actually somewhat of a misnomer because it is now believed that each of the domains arose independently. D) All of the answers are correct.
Freshwater sponges reproduce asexually by forming resistant internal buds called
a. spicules. b. larvae. c. ovaries. d. gemmules.
Which of the following structures is responsible for the control of the heartbeat and blood pressure?
a. pons b. hypothalamus c. medulla d. cerebellum e. thalamus
Transgenic organisms
A) contain cells from other organisms. B) contain genetically engineered microbes. C) are the same as clones. D) contain genes from other organisms. E) have genomes that have been sequenced completely.