Answer:
barter trade
Explanation:
because you exchange goods
Answer:a u have both ur parents genes Dd and Dd
Explanation:
Answer:
bacteria, archaea, plants, protists, animals, and fungi,
Explanation:
A dependent variable is how they are recording, measuring or keeping track of the science experiment their doing.
A independent variable is the things/types there using to compare what is the most/least affective in the experiment.
A controlled variable is something that stays the same in the experiment or a group/set used for comparison