Yes, they must pass through a membrane proteins in a process called facilitated diffusion.
The answer is <span>Determine why the beetle is eating one tree but not the other.
The botanist should first d</span><span>etermine why the beetle is eating one tree but not the other. By determining that, he will understand what connects beetle to the tree. This will also explain does the tree benefits from this interaction or not.</span>
Petroleum is not a source of coal or coal-precursor.
Answer:
i could not figure it out though i tried my best
Explanation:
