4. why might it be important for white blood cells to be part of a clot that seals an
injury?

Are the layers of rock above and below the coal older or younger?

1. mendel observed that pea plants had traits, such as color, that were either “one or the other,” never something in between. discuss the correlation between mendel’s factors, what they might be, and why pea plant traits come in one form or another—e. g., gray or dark red—rather than blended.

Aglacier retreats, exposing bare rock and allowing communities of organisms to move in. this is an example of