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Biology, 21.06.2019 19:50
Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?
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Biology, 21.06.2019 22:00
How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.
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Biology, 22.06.2019 00:30
Based on anatomical similarities, to which modern animal is dr. diggerβs creature most closely related?
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Biology, 22.06.2019 04:30
Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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Which of the following does not reduce the amount of energy available to a higher order of consumers...
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