I think structure however I am not sure so keep that in mind.
Receptors on the plasma membrane either recognize a particle as acceptable or foreign.
Answer: https://www.wwf.org.uk/learn/wildlife/polar-bears#:~:text=Challenges%20affecting%20polar%20bears&text=The%20Arctic%20is%20warming%20about,ice%20to%20raise%20their%20young.
https://www.carbonbrief.org/polar-bears-and-climate-change-what-does-the-science-say
Explanation:
The substance, DDT, damages a bird life until it was largely ban in the 1970s. DDT (<span>dichlorodiphenyltrichloroethane) is a colorless, tasteless, odorless, and crystalline organochloride known for its insecticide properties.</span>
