Answer:
An introduced species, alien species, exotic species, adventive species, immigrant species, ... Non-native species can have various effects on the local ecosystem. ... Some species have been introduced intentionally to combat pests
Explanation:
Answer: 1. 6
2. 8
3. 6
Explanation:
got it right on Edgenuity
The toxins are the substances which decreases the conc. of oxygen in wzater and increase toxicity
