1. Write three complete sentences to answer the following question. How does photosynthesis contribute to the cycling of matter in an ecosystem? *
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Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

Tom wants to conduct a scientific study but he needs to finish by the end of the school year. what practical way could tom work around this limitation and be successful in his study?