Energy is stored in the chemical bonds.
Answer: the steel wool in the 3.0 M HCl reacts fastest.
Explanation:
D. Proteins help control substances by making trans-membrane channels.
Answer: The vulnerable embryo must be sheltered from desiccation and other environmental hazards. In both seedless and seed plants, the female gametophyte provides protection and nutrients to the embryo as it develops into the new generation of sporophyte.
Explanation:
i think this may help