What is the name for the protective structure that forms around an embryo?
O
A. Blastocy...
Biology, 26.03.2020 11:26 aleiahmartin
What is the name for the protective structure that forms around an embryo?
O
A. Blastocyst
O
B. Stem cell
O
C. Chloroplast
O
D. Placenta
Answers: 3
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Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?
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The lineage of pea plants produced round seeds for four generations. the plants that fertilized these pea plants also produced round seeds. however, in the fifth generation, the plant produced to two plants with wrinkled seeds. can that be possible?
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