True because toxins aren’t natural the were made in laboratories so your answer to the question is TRUE
It helps compare the frequencies of light.
Answer:
The ecosystems are different
Explanation:
Every ecosystem needs most of the types, such as producers and herbivours, but different animals need different climates, such as cacti need deserts, yet fish need water, they can't( Or shouldn't ) Be in the same ecosystem due to thier needs.