Perognathus californicus Perognathus nelsoni
Perognathus spinatus

5. Give an example of two of these
organisms that CAN MATE and have
fertile offspring.

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?