Answer:
C. Breathing and heart rate speed up during excercise.
The acceleration of gravity due to Earth is 9.81
The correct option is DIVERSITY AND UNITY.
Evolution is able to explain how living organisms developed from an earlier forms which become extinct and are replaced by more developed organisms and how the living organisms show uniformity in some instances even though they are different.
The class Amphibia is a class described as vertabrates that breed on land, but live in water.
