Do athletes in endurance sports need more protein than athletes attempting to build strength

Endurance athletes and strength building athletes can both damage their muscles, just in different ways, so both need protein. And they both need equivalent portions of protein whilst training. :)

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b