________ appears to have been the first hominin to use stone tools
A) Homo erectus
B) Homo habilis
C) Ardipithecus
D) Australopithecus
Answer: B
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A couple has five sons. What is the probability that their next child will be a girl?
A. 0% B. 25% C. 50% D. 75% E. 100%
The common currency of the Economic Monetary Union is the
a. franc. b. pound. c. euro. d. mark.
Which of the following statements about energy metabolism is false?
-The energy that powers living systems ultimately comes from the sun. -All animals in some way rely on producers for their energy. -Plants provide the water and carbon dioxide that animals need to carry out cellular respiration. -Most eukaryotic organisms carry out cellular respiration in the presence of oxygen. -The main objective of cellular respiration is to break down glucose and make ATP.
Hypothesis
What will be an ideal response?