In any healthy population of species a certain number of offspring are born each year. Which vocabulary word would help you scientifically describe the number of offspring?

In a balanced ecosystem organisms will eventually die. This could be to old age, disease, starvation any many other things. What is the scientific way to describe the number of organisms that die each year, from a specific population?

Occasionally deer will wander off from their herd and become lost. The chances of survival are less likely unless this deer can find a new herd to join. When a lost deer does successfully find a new her to join, what would we call this?

In the Lion Kingdom, prides can only have a certain amount of full grown male Lions. When male lions grow up and reach a certain age/maturity, they must leave their pride to start their own or find one that is in need of a male. What would we call this?

Sometimes populations are small and sometimes they are big. It depends on lots of factors to include location, available resources, and available mates. Scientists love to know how many of each species are in a specific area that is a specific size. When they complete that calculation, we call this...

All species eventually die. Often times species die not to old age, but to other things happening in their environment. This could be wildfires, lack of food, or getting eaten by a predator. What do we call those events that may kill an organism?

Ecosystems can only "take care" of so many organisms at once within a specific species. When populations become too large, species in that population will die off. When populations become too low and resources become high, species will begin to overpopulate. What do we call the "perfect balance" in an ecosystem?