Biotic and abiotic factors because without abiotic factors the biotic organisms cant live in an ecosystem.
Are there choices to choose from, because that is a very general question?
Answer:
The cells at the end of meiosis II must have half the number of chromosomes because, if they didn't have, the reunion of both gametes with diploid number of chromosomes for example, in gametes would form twice the number chromosomes.
Huddling is the correct awnser