By helping the ones who are already endangered and minimize habitat loss, global warming, etc.
Natural selection is a type of evolution that allows organisms to adapt into the environment they're in for survival.
Some isotopes, however, decay slowly, and several of these are used as geologic clocks. Dating rocks by these radioactive timekeepers is simple in theory, but the laboratory procedures are complex. <span>All methods rely on the fact that certain elements (particularly uranium and potassium) contain a number of different isotopes whose half-life is exactly known and therefore the relative concentrations of these isotopes within a rock or mineral can measure the age.</span>
Answer: students drinking coffee
Explanation:
The dependent variable is the one that DEPENDS on what is about to happen. In this situation, whether the students scored higher DEPENDS on if they drank coffee.
So the independent variable would be the fact that they drank coffee.
Hope this helps!
The answer you are looking for is D, the cell membrane!
Not sure how to explain it, it's biology, mostly memorization.
