Answer:
asexual reproduction
Explanation:
because every single organism in the species is the exact same genetically, there is no variation between them.
Young kids are having kids
If its a heart its circulatory, lungs respiratory, kidneys excretory, brain nervous, stomach digestive, hormones endocrine, skin integumentary, lymph nodes lymphatic, bone skeletal, muscle muscular, thymus immune system.
But if you can show a pic i could try to answer it more specifically.
