30. Which of the following is a true statement about cartilage?
A.
It is found on articular surfaces of bone
B.
It receives oxygen and nutrients by diffusion
C.
The skeleton originated from cartilage in the womb
D.
All of the above

the last statement is correct i.e.

when your heart is not pumping enough blood around your body because your heart is severely failing, you may need an artificial heart. an artificial heart is a mechanical device, about the size of an orange, that is connected to your heart or implanted in your chest to or replace a failing heart.

you can find happiness by thinking about your past that has full of happiness.

explanation: