I think the answer is b as in boy.
The amount of available resources in the ecosystem must change at a predictable rate.
C.2
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Answer: just write "onion cell microscope slide experment" as the topic
Explanation: To study the structure of the onion epidermal cell, with particular emphasis on the nucleus and nucleoli.As the cells observed do not have a cell wall, nor a prominent vacuole, the cells of the specimen on the slide are animal cells.
