The development of the horse in the fossil record shows
the horse walked upright
the horse started out the size of a small dog and evolved to the larger modern horse
the modern horse evolved from mules
the modern horse was once related to bears
c?

During the winter, this species of fox has white fur, but in the summer, it has brown fur. what environmental change may have lead to this fox's fur color? snow cover increase in sun's brightness volcanic eruption global warming

Which is the most likely reason the writer of the play pygmalion chose to change the character of galatea from a statue to working-class woman?

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament