How did the evolution of the jaw contribute to diversification of early vertebrate lineages?
A) It allowed for smaller body size.
B) It was the first stage in the development of a bony skull.
C) It paved the way for the evolution of the pharyngeal jaw.
D) It made additional food sources available.
E) It increased the surface area for respiration and feeding.
V
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The largest annual movement of carbon between reservoirs occurs ____
a. from plants to atmosphere b. from soil to atmosphere c. from atmosphere to ocean d. from atmosphere to plants e. from ocean to atmosphere
Which species originated in Africa around 200,000-100,000 years ago?
a. Homo erectus b. Homo habilis c. Australopithecus afarensis d. Homo floresiensis e. Homo sapiens
List the steps of the viral lysogenic cycle that are different from the lytic cycle
What will be an ideal response?
GM foods are controversial for many reasons. Which of the following does not represent a controversy between advocates and critics of GM foods?
A) GM foods cause disease in consumers. B) GM foods have an unknown impact on consumers. C) GM foods have an unknown impact on the environment. D) GM foods increase yields on farm land.