capillaries
Yes they are organisms
it depends on what organism
food and water
a single cell is more differentiated
Single Celled
Bacteria are single-celled organisms
Single-cell
single cell
Caulerpa is the largest single Cell organism. An unfertilized Ostrich egg is the largest single Cell; Ovums are single Egg Cells. Actually the largest single cell in the world is the giraffe neuron in a hind leg of the giraffe.
Yes. Everyone begins as a single cell. A single-celled egg, fertilized by a single-cell sperm. Which then becomes a zygote, then a blastula, then slowly a fetus.
Yeast
yes some of them do depending on there size