Answer:certain ear shapes help the goats survive and reproduce I think. Not 100%
Explanation:
Answer:
It means that the cell membrane allows certain substances to pass through and not others. As the cell membrane consists of a phospholipid bilayer with a hydrophobic core, only small uncharged hydrophobic molecules can pass through the cell membrane e.g. glucocorticoid and other larger charged particles require transporters or channel proteins to pass through the cell membrane, e.g. glucose.
The dependent variable is the data we collect during the experiment. This data is collected as a result of changing the independent variable.
To prevent cancer, over exposure to radiation
