That some newly hatched turtles can swim faster than others of the same species is evidence of

variations

Explanation:

Variation is a factor that allows individuals of the same species to have different characteristics and even different structures. An example of this can be seen in the question above where filhostes turtles, which have just hatched and need to reach the water quickly, have different speeds. Some turtles run faster to get to the water, while others are slower (and often end up being caught by predators).

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands