Http://study.com/academy/lesson/positive-negative-feedback-in-biological-systems.html
Here's a link :)
Lt has to be the 2nd answer. Some substances must be dissolved in water before they can be used.
pls mark as brainliest if it's right!
Answer:
the stem
Explanation:
the stem because it transfers sugar the part of the plant...
Is there a multiple choice? It will be easier for me to answer it to you that way.
Answer:
an atom
Explanation:
An atom is the smallest particle of an element that has the properties of that element.