The parts include a plasma membrane, cytoplasm, ribosomes, and DNA.
Answer:
Common characteristics of birds and fishes are:
They can have Respiration.
They can move from one place to another.
The aveoli opens and closes to allow the oxygen in but keep out food liquids any thing that's not a gas bacicaly
The immune system has many kinds of white blood cells to fight infections. HIV finds the white blood cells, called CD4 cells. But with cancer the white blood cells are being killed off.
