The third one is the answer.
The first one is overproduction.
The second one is competition.
The third one is survival of the fittest, because if there are six grey mice and two brown mice in a brown field, which is more likely to be eaten by a predator? The grey mice are. Their genetic material helps them to survive and therefore be fit to their environment.
Matter is anything that has mass and occupies space. There are three different states of matter- solid, liquid, and gas.
<span>Every cell in your body contains organelles. Just like organs in the body, each organelle contributes in its own way to helping the cell function well as a whole. The nucleusmitochondria and chloroplasts are all <span>organelles. Hope this helps!</span></span>
weight=mass*gravitational accelaration
we know the weight and the gravitational acceleration
400N=m*10m/s^2
m=400N/10m/2^2
m=40kg