1, ¿cual es la diferencia entre cromatina, cromatidas hermanas? 2, ¿que es el ciclo celular? 3, ¿cuanta etapa tiene el ciclo celular? 4, ¿cual es la diferencia entre celulas procariotas y las celulas eucariotas?

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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he forelimbs below belong to four species that descended in a direct line from the ancestral mammal shown above. of the four descendants shown, which species most likely appeared earliest in evolutionary history?