Which of the following is true about stem cells?
a. All stems cells can develop into any other type of cell.
b. Stem cells are unspecialized cells.
c. Stem cells are undifferentiated cells derived from embryonic cells.
d. Stems cells undergo meiosis to repair damaged tissue.
B
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The tooth morphology of an animal is related to its diet
a. True b. False
Light suppresses secretion of __________ by the
pineal gland in the brain. Fill in the blank(s) with the appropriate word(s).
The ____ generation is dominant in mosses, as it can live independently
a. haploid sporophyte b. haploid gametophyte c. diploid sporophyte d. diploid gametophyte e. triploid sporophyte
In order to reproduce sexually, diploid cells must produce ________ gametes through ________.
A. haploid; mitosis B. triploid; mitosis C. haploid; meiosis D. diploid; meiosis E. diploid; mitosis