Alguien que sepa, por ejemplo esto : porque el primer par craneal, es el primero y no el tercero? y como se determina que sea el primero?

What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.

The cluster of developing cells from conception until birth is called an

Plz ! what does it mean for an allele to be dominant?