Answer:
When monarchs eat the milkweeds,they become toxic to other animals because the milkweeds carry toxins in them that only they can eat. Also some milkweeds can help cure their disease and parasites to make them uninfected.
Explanation:
Answer:
pollution.
I looked it up on Google.
DNA, Do you want the rest of Lesson 16: The Fossil Record Biology B Unit 1: Evolution Quick Check?