Answer:
Because they don't have fertilizer.
Explanation:
Well, if this was a long time ago, then farmers did not have fertilizer. So, there are bacteria on the roots of plants that convert nitrogen into a usable form. It's very important for growing, and when farmers harvest the crop, not much of the nitrogen is returned to the land, so it is not as fertile. Fertilizer is largely consisted of nitrogen, so that is why farmers use fertilizers today. But "a long time ago," farmers did not have fertilizer.
It consist of integral proteins and trans-membrane proteins and peripheral proteins as well
Answer:
um i need help on this 2 !!!!
Explanation:
Answer:
In the eukaryotic cell division the cell synthesizes mRNA and proteins in preparation for subsequent steps leading to mitosis.
It is <u>TRUE</u> that multiple polypeptides joined together represents the tertiary level of protein organization.