Answer:
diffusion
Explanation:
Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
Answer:
The nucleus
Explanation:
The nucleus contains chromosomes that contain the DNA molecules and in these DNA molecules, genes are found that are responsible for the passing of characters from the parents to the children. Hence, nucleus is your answer.
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Answer: They contain substances/substrates in specific ways that heighten the chances of the chemicals reacting with each other
Explanation:
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Answer: Margin shape
Explanation:
In addition to the leaf shape (narrow and broad) and leaf vein arrangement (parallel and non-parallel), leaf <u>margin shape</u> is used to classify plants.
