Tree squirrels can have different fur colors. Squirrels live in forests where foxes also live. Foxes hunt squirrels for food. Squirrels that have fur the same color as the trees are harder for the foxes to see and catch.

After a couple of generations, scientists found black squirrels living in the trees. How did the color of the trees in the squirrels’ environment change? Explain what happened to the squirrels over many generations.

The slope of a velocity time graph over any interval of time gives the during that interval

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

Avehicle accelerates from 0 to 30 m/s in 10 seconds on a straight road