The first known hominin species to leave Africa was ____
a. Homo sapiens
b. Homo erectus
c. Homo habilis
d. Australopithecus afarensis
e. Homo neanderthalensis
ANSWER: b
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Synesthesia occurs when
a. one sense is confused with another. b. two senses are perceived together. c. three senses are perceived together. d. sight and vision are perceived together. e. vision, taste, and pain are perceived together.
Which type of dinosaur might possess long and sharp, as well as large and flat teeth?
a. Carnivore b. Herbivore c. Omnivore
The ________ pathway is important in early nonspecific responses to infection because it occurs in the absence of antibodies.
A) cell-mediated B) alternative C) clonal selection D) classic E) humoral
Which of these strategies does phage T7 use to ensure successful infection and replication within a host?
a. using host RNA polymerase to transcribe early proteins and then subsequently inhibiting host RNA polymerase activity b. rapidly synthesizing an anti-restriction protein before the entire T7 genome has entered the cell c. processing DNA concatemers using a head-full mechanism d. both a and b