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Which are two kinds of echinoderms that use tube feet for movement?
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Biology, 27.02.2021 01:00 milonirishovnsez
QUICK HELP PLEASE!
Which are two kinds of echinoderms that use tube feet for movement?
A. sea cucumber and brittle star
B. brittle star and sea star
C. sea star and sea urchin
D. sea urchin and brittle star
Answers: 1
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How many variables are altered in a good experiment? a.1 b.0 c.2 d.3
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How does natural selection change thephenotypes within a population over time?
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The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.
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