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:
D) It contains compounds and is therefore a substance
Explanation:
A mixture is composed of multiple compounds.
True because machines are a replacement that doesn't need a salary like a person would
The glands located besides the thyroid are the Parathyroid gland.
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files