Someone can help me with this class living environment

What is the process of pulling apart an n2 molecule nevermind i got it

During binary fission, what events must occur before the cell splits into two new cells?

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals