Answer:
A. What is the effect of pesticides on the environment
Explanation: I just took the test
Answer:
the most random changes of mutation is mainly an organisms physical appearance
Answer: Racial classification
Explanation: Racial classification can be defined as the way humans are classified based on their physical and social traits which they have such as how they look, their skin color, hair texture, the native languages they speak.
Scientists used racial classification to learn how unique and different humans are.
Not a 100% sure but i believe it’s B