The spindle gradually lenghtens during prophase.Towards the end of the prophase stage,the nuclear envelopes break down,and each of the microtubules reach from each cell pole to the cell's equator an
4. D
5. C
6.C
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Renewable resources are renewable, meaning they are replenished. Nonrenewable resources are gone (either forever, or within a reasonable amount of time, like natural gas).
Of the given choices, solar energy, nuclear energy, wind power, and human capital are all renewable.
Answer: Human evolution, the process by which human beings developed on Earth from now-extinct primates. Viewed biologically, we humans are Hono Sapines, a culture-bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.
Answer:D
Explanation:Mantle convection currents cause plate movement