How many generations are represented?

1
1

2
2

3
3

4

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Plz ! ive been stuck on this forever

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation