Answer:
<em>experimental group</em>
Explanation:
In scientific experiments, an experimental group can be described as a group which is under study. In this group, an independent and dependent variable is present. An independent variable can be described as the factor which changes either naturally or which is being changed by the researcher. A dependent variable can be described as the variable which is under study and it might be dependent on the independent variable.
Sabine river. Red river. rio grande
Both Hook and vanLeeuwenhoek helped to create the basis of cell theory by determining that all living things are made of cells.
With a higher population there are more people to have chances at getting sick. Now once someone gets sick most people are bunched up in cities meaning there in contact with a lot of others making the disease spread quickly.
From - brainly.com/question/11776474#readmore
