A zygote is the product of fertilization. The diploid zygotes of the four organisms seen here all underwent mitosis and differentiation in order to produce the four very different embryos. The differentiation of cells during embryogenesis is the key to cell, tissue, organ, and organism identity. Once an egg is fertilized by a sperm, a zygote is formed. The zygote divides into multiple cells by mitosis, triggering the beginning of embryonic differentiation. <span />
When air is cooled to the point where it cannot hold anymore water it starts to rain. evaporation is a cooling processes because it cools the air. Evaporation is a cooling processbecause when liquid turns to gas, it needs more energy, and so it has to take that energy from its surroundings. The energy is in the form of heat, and when the heat energy leaves with theevaporating liquid, the surroundings get cooler. the sun is responsible for unequal hearing in the water cycle.
Answer:This question makes no sense.
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Answer: Most ecologists do not study the biosphere level of organization because it is difficult to study all of life on earth as a whole. It is more effective to study it broken down into parts.
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