Judging by the nature of modern humans, chimpanzees, and bonobos, which of these traits did the last common ancestor of all three probably NOT show?
A) some form of culture
B) tool use to get and process food
C) a broad diet including plenty of fruit
D) strictly heterosexual mating patterns
E) some degree of hunting
D
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As a cell increases in size, the surface area ________ and the volume ________.
Fill in the blank(s) with the appropriate word(s).
A new microbe has been discovered in the rumen of sheep. Microscopy shows no evidence of a nuclear membrane and biochemical studies of the cell wall demonstrate the lack of peptidoglycan. Metabolic studies show that this microbe generates methane. This microbe would most likely be classified in the:
A. Domain Archaea B. Domain Eukarya, Protists C. Domain Bacteria D. Domain Eukarya, Kingdom Fungi
What are the advantages of internal fertilization?
What will be an ideal response?
Compare and contrast the different uses of heat to reduce microbial contamination, including their relative efficacy.
What will be an ideal response?