There are four groups of macromolecules. Carbohydrate, Protein, Nucleic acid, and Lipids. Each macromolecule is essential for the growth and formation of cells. Carbohydrates are used for energy and help build the structure of the cell wall. Proteins help build and regulate muscle and tissue. Nucleic acid transfers
and stores information. Lastly Lipids insulate your body and help produce hormones.
starch
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Answer:
b
Explanation:
a semi permeable membrane requires no energy since it allows safe passage of molecules from low to high think of it like a tea bag it has a high concentration and the low concentration is the hot water.
I hope it helps
Answer:
mwmMLFMINRINFWEFMswde
Explanation:
ewfwegthyrddtrf5ygt<em>rgdg</em><u><em>fregsrgre</em></u><u><em>frergtr</em></u>rf
Answer:
It is well supported by evidence.
