Answer:
When a new and aggressive species is introduced into an ecosystem, it may not have any natural predators or controls. It can breed and spread quickly, taking over an area. Invasive species can change the food web in an ecosystem by destroying or replacing native food sources.
Explanation:
I majored in Biology
FISH levels and low estrogen levels.
Answer:
the skin,hair,naios,glands and nerves
First question=true
second=false
third=false