Most researchers believed that modern humans evolved from a common ancestor of
A. Proconsul.
B. Homo ergaster.
C. Australopithecus afarensis.
D. Homo erectus.
E. Australopithecus africanus.
Answer: B
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During secondary aerobic wastewater treatment, some of the activated sludge goes ________ while the rest goes ________
A) back to the aerator / to the anoxic sludge digestor B) back to the primary system / to the aerator C) to the anoxic digestor / back to the primary system D) back to the primary system / to the tertiary digestor
Where does translation take place in a typical eukaryotic cell?
a. the nucleus b. ribosomes c. the cytoplasm d. ribosomes and the cytoplasm
What might one expect to see in a graph depicting realized niche space in a community?
A) one dominant species utilizing all of the resources B) large overlap between species resource use C) reduced overlap between species resource use D) each species utilizing its full resources
Which enzyme is matched correctly with the substance it digests?
a. pancreatic amylase: fats b. pepsin: proteins c. salivary amylase: fats d. trypsin: fats