Scientists perform ____ in order to ____ a
given ____.
a. experiments; test; hypothesis.
b. tests; experiment; law.
c. tests; experiment; variable.
d. facts; test; variable.
e. hypotheses; try; experiment.
A
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Vestigial structures are found in humans, and are thought to be useless or rudimentary body parts that had an important function in ancestral species. Give two examples of vestigial structures in humans
What will be an ideal response?
"Lucy," who belongs to the group ________, was a bipedal hominin with a brain smaller than that of humans
A) Australopithecus B) Homo erectus C) Ardipithecus D) Homo habilis
What are some of the dangers associated with the use of organophosphate pesticides that might be of concern for humans? (Organophosphates inhibit acetylcholinesterase.) What are some ethical concerns related to their use?
What will be an ideal response?
What is a point mutation?
A) a mutation that affects only one metabolic pathway B) a mutation found at a single base pair in the genome C) a mutation that affects a single cell D) a mutation in which one chromosome is lost E) an error in DNA that is caused by malfunctioning of DNA ligase