Mitochondria :) your welcome
The heart is an organ (rather than a tissue) because it has an important (and complex) function. Tissues don't have nearly as many things in it as the heart does.
Hope this helps! :)
Answer:
1)A
2) C
3)A
4)C
I am pretty sure these are all right :D
Explanation:
Answer:
look below
Explanation:
Calcium is very essential in muscle contraction, oocyte activation, building strong bones and teeth, blood clotting, nerve impulse, transmission, regulating heartbeat and fluid balance within cells. Brainliest please.
