: Which of the following occurs in January when the earth is closest to the sun?
A periapsis
An apoapsis
3:
A revolution
O An ellipse

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions

How energy move through ecosystem ?