1. describe why organisms compete and what the results of competition might be. 2. describe the symbiosis between a parasite and its host.

Organisms compete for food and results of competition could be a lowered amount of animals in a species or in drastic cases, extinction. The symbiosis between a parasite and it's host is parasitism and it's because the host is being harmed by the parasite, but the parasite is benefiting because it is drinking or feeding from its host.

An ecosystem is in a certain area and includes living and non living plus there is weather conditions and a biome is a large amount of area with similar climate.so ecosystem is based on weather and biome is based on the average climate 

Hxjduarukhfhkxdjhauug