Most stars seem to move across the night sky because a. the universe is expanding
b. the universe is getting smaller
c. Earth is orbiting the Sun
d. Earth is spinning on its axis

Study this image. which statements best describe the rock shown? check all that apply. the grains of this rock are jagged. this rock has several coarse grains. the grains in this rock are very large. this rock has a non-banded pattern. the color of this rock is determined by its texture.

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

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.