nails or your hair
yes
Nails
red blood cell is the only human cell that does not contain a nucleus
cartilage
The only structure would have to be atrificial one such as hip replacements other than that all strucutre are made or (or contain) cells and so require blood vessels to supply them. To supply indidual cells cappillary beds are found in all these tructured.
This theory is false. Red blood cells do not contain a nucleus.
Frog red blood cells contain a nucleus, whereas human red blood cells do not.
There are two types of blood cells in the human body. One is the red and the other is white. The white does not contain deoxyhemoglobin.
The human sperm cell has 23 chromosomes. White blood cells have 46 chromosomes. Mature red blood cells to not contain a nucleus, and therefore has no chromosomes. Platelets are cell fragments and also do not contain nuclei.
1) Frog's red blood cells contain a nucleus that carries all the genetic information needed to make new cells by replication. Human red blood cells contain no nuclei because they reproduce differently than frog. 2) We human have platelets in our blood but frogs do not have them.
Oxygen, CO2 and other waste
Frogs have nucleated red blood cells, whereas humans have anucleated red blood cells. This means that frog red blood cells contain a nucleus, while human red blood cells do not. Additionally, frog red blood cells are elliptical in shape, while human red blood cells are biconcave disks.