A unique feature of the nucleus is that it disassembles and re-forms each time mostcells divide. At the beginning of mitosis, the chromosomes condense, the nucleolus disappears, and the nuclear envelope breaks down, resulting in the release of most of the contents of the nucleus into the cytoplasm.
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Answer:The producers are autotrophic that is they manufacture their own food by the process of photosythensis while consumers feed on the producers. The different bteween a producer and a consumer. A producer is the the first tropic level, eat only plant. While a consumer eats producers
Explanation:B
Answer:
D. it takes millions of years to form
