Soil in cooler climates would most likely be well developed and have Lots of organic matter .
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Different organisms have different number of chromosomes
I think the correct answer from the choices listed above is option A. Both insects and roundworms exhibit molting during growth, whereas sponges, snails, and leeches do not. It is the process of shedding old feathers, hair or skin to make way for new growth.
Matter makes up everything.
