What adaptation is found in the evergreen trees of boreal forests?
A) a thick waxy coat on leaves
B) lower levels of chlorophyll in leaves
C) the ability to shed leaves when water availability is low in winter
D) flower production in early spring
A
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Which of these statements about human evolution is correct?
A) The ancestors of Homo sapiens were chimpanzees. B) Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens. C) The evolution of upright posture and enlarged brain occurred simultaneously. D) Different species of the genus Homo have coexisted at various times throughout hominin evolution.
The DNA of each species has unique _____ that set it apart from the DNA of all other species
a. nucleotides b. chromosomes c. sequences d. bases
Without energy, organisms could NOT
a. maintain homeostasis. b. carry out chemical reactions. c. make their own food. d. all of the above.
Which of the following was supported by the terrible accident that happened to Phineas Gage?
A) The cerebrum plays a major role in the sense of balance. B) You cannot live without your hypothalamus. C) The frontal lobes are associated with personality. D) The pons plays a crucial role in hearing.