The population is a group of animals of the same specie.
Factors that can affect the population
Climate
The climate can affect the population because
if that specie need to be in a hot place, and
the climate starts getting very cold they will
get sick and some probably would die.
Birth rate and death rate
The birth rate and the heart rate is
the most easy way that a
population can change because if
a population have a bigger death
rate than a birth rate the
population will decrease. And is
the same with the birth rate
Food and Water
If there if over population the resources will
be lower and some animals would not have
enough to eat and drink so this can cause a
bigger death rate
Immigration
If there is a case of over
immigration the population
would have over population.
Space
If there is not enough space for all the
population they could pass two things some
animals will have to leave the group or some
animals would not have enough to eat or
drink