Answer:
your not aloud to do tests on here or at least don't say that for next time.
Explanation:
One of the challenges that scientists face when classifying a new fossil is that any tiny detail is all that separates one species from another. Further exploration is required to identify another set of characteristics that may help in deciding which organism belongs or create a new class.
Answer:
other answer is right but they got the letter wrong, its answer B: Birth defects
Explanation:
