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Which is not an echinoderm?
a)sea star
b)sea urchin
c)sand dollar
d)spider
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Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.
Answers: 3
Biology, 22.06.2019 18:00
Define adaptation. why do organisms adapt? give an example.
Answers: 2
Which is not an echinoderm?
a)sea star
b)sea urchin
c)sand dollar
d)spider...
a)sea star
b)sea urchin
c)sand dollar
d)spider...
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