Red blood cells in a cluster, showing cellular structure
Keywords
blood,
cell,
red,
biology,
medicine,
health,
corpuscle,
erythrocytes,
shape,
form,
round,
oval,
disc,
group,
flocked,
collection,
cellular,
structure,
anatomy,
science,
medicals,
human,
body,
organ,
tissue,
vessel,
oxygen,
ruby