They don't reproduce, as far as I know. They are produced in bone marrow.
all membrane bound organelles are absent in prokaryotic cells. They only have a membrane, cytoplasm, DNA and ribosomes(and also some sort of a cytoskeleton that helps with division and cell shape)
Hope this helps
Lysosomes are organelles that break down waste material so they clean up waste basically so the body system that has the closest function to lysosomes is the excretory system
The answer is D. The ribs PROTECT the lungs and the heart. They allow you to move and they store minerals such as calcium. However it is the brain and the blood vessels that regulate the body temperature not the skeletal system.
