The answer to your problem is question 3 i just took that test i got it right
Lightweight beaks, heavy teeth, stability in flight
I would say it is a hydrogen bond
Gametes are reproductive cells that unite during sexual reproduction to form a new cell called a zygote. Sexual reproduction needs zygotes to reproduce that is why gametes are needed. Asexual reproduction doesn’t need gametes because there is only one parent and there is no fusion of gametes.