Gametes are sex cells. They are sperm and egg.
Two diverse species naturally breed an offspring, and selective preserves raver new traits in a given environment, (they evolve).
I hope this helps.=^⊃
A Pollen Cell is called a Generative Cell
The best and most correct answer provided by the question is HBr, the most powerful and dangerous acid. I hope my answer has come to your help. hope this helps and have a nice day!