I don’t knows if it has options, but Evolution
Threatened means they are lowering in numbers and nearing to be endangered.
Endangered means they are dangerously close to being extinct
Extinct means there is none of them left in the wild.
I hope this is what you meant.
Bone found at the lower-back area of the cranium
Answer:
The cell wall is like the integumentary system of the human body because they both protect the interior from the external environment.
Explanation: