Photosystem II absorbs energy and energizes electrons. The electrons are passed along to photosystem I, which absorb more energy and adds it to the electrons.
Answer:
Ion
Explanation:
Covalent bonds are stronger than hydrogen bonds. Ionic bonds are stronger than covalent bonds because of the coulombic attraction between ions of opposite charges.
The answer is: " a gradient " .
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The correct answer is <em></em>ii.
The pharyngotympanic tube or else eustachian tube is a structure of the middle ear, which connects the nasopharynx with the middle ear. The function of this structure is to equalize the pressure and drain the mucus produced by the middle ear.
They are different because they use different frequency
