Answer:
In a single-celled organism, the absorption directly involves the cell membrane. The cell membrane is responsible for keeping the shape of the cell and for deciding what goes inside the cell and what stays out. It lets the substances that help and sustain the cell in and keeps the substances that would harm the cell outside and thus it is directly involved in the absorption of nutrients.
1,2 are the answers i think
Explanation:
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Positive outcomes of the Columbian Exchange include technological advances in farming, architecture, and weaponry.
They are required to have legally acquired evidence
They are required to have a warrant of arrest
I am unsure of the third. However, it could be that a witness (aside from the victim and/or officer) was present.