Which principle of natural Selection explains why student a classroom all look different?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Need the diagram below, which is not drawn to scale, shows the position of the earth, moon, and sun. what type of eclipse occurs when the earth, moon, and sun are lined up in the order shown? a. planetary eclipse b. solar eclipse c. martian eclipse d. lunar eclipse

How do the sperm cells get from the stigma to the ovules?