Under warm conditions, you will not have goose bumps because the arrector pili muscles ________
Fill in the blank(s) with correct word
relax
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A difference between a stem cell and a progenitor cell is that
A) a progenitor cell cannot self-renew and a stem cell can. B) a stem cell cannot self-renew and a progenitor cell can. C) progenitor cells are rare but stem cells are abundant. D) progenitor cells are not present in embryos but stem cells are.
If a woman has blood type O and a man has blood type AB, what is the probability that they will have a child with
blood type O?
a. 0 b. 1/16 c. 1/4 d. 1/2 e. 3/4
The first step in the healing of a fracture is the formation of ________
Fill in the blank(s) with correct word
Scientists in Scotland figured out a novel method to clone cells successfully. It involved
A. using an egg that was in cytokinesis and a nucleus that was in S stage of the cell cycle. B. using an egg that was in the S stage of the cell cycle and a nucleus that had just entered prophase. C. using an egg that was in the S stage of the cell cycle and a nucleus that just passed through telophase. D. using an egg and a nucleus that were at the same stage of the cell cycle.