It’s the remains of a dead organism
Answer:
The type of food Bob is given.
Explanation:
An independent variable in an experiment is the variable that is changed. Here, the type of food is the only thing that is changed and the amount of water, temperature and other variables were kept constant (same). Thus, the independent variable is the type of food Bob is given.
Answer:
A) Tomato plants grown in soil with no fertilizer
Explanation:
The control group is the group that you do not change anything. This is used as a basis or a baseline to determine whether changes you make in the experimental groups actually made a difference. An experiment is incomplete when you do not have this because it does not show any evidence that the change you made is what ellicits an effect.
They form by when atoms lose or gain electrons in order to have a full outer shell of electrons to make them stable.<span>One atom pulls an electron from another atom</span>
