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Biology, 21.06.2019 20:00
How does pregnancy begin? a) a placenta forms in the uterus b) a sperm reaches an egg in the fallopian tubec) the blastocyst differentiates into two cell types d) contractions begin in the uterine wallapex
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Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism
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Biology, 22.06.2019 06:30
What is the problem in this article? what solution does the article propose?
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Biology, 22.06.2019 08:00
Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?
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What structures might be found in the cranial portion of the midsagittal plane? the umbilicus and b...
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