How might the polar bears population suddenly increase? how might this affect the ecosystem?

The population of polar bears could suddenly increase if their food sources or habitat increased or if people hunted them less. This could affect their ecosystem by decreasing the amount of prey available(from over hunting) or causing them to run out of territory.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

i think that c)gold was found there

but i am not sure