Biology, 26.06.2019 12:20 annakoslovsky3040

Why does the shape of the lighted part of the moon change when viewed from earth?

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Biology, 21.06.2019 15:40, mktdonaldson

Aneuron is stimulated with an electric pulse. the action potential is detected at a point 3.70 cm down the axon 0.0052 s later. when the action potential is detected 7.20 cm from the point of stimulation, the time required is 0.0063 s. what is the speed of the electric pulse along the axon? (why are two measurements needed instead of only one? )

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Biology, 21.06.2019 21:00, rayisaiah3

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

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Biology, 22.06.2019 00:00, Blbyrd1287

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

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Biology, 22.06.2019 03:20, ahmedeldyame

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics