Viruses cannot reproduce. they instead copy themselves with the help of a host cell. a cell can reproduce and doesn’t need help from other cells
Answer:
Walls are thin.
Inner surface is moist.
Tissues are filled with blood vessels.
Exposed to air
Explanation:
U thought you was getting free answer my points now thanks for thats point tho
Answer:
There are 4 different genotype variations:)
Explanation:
Blood is just red.
Blue blood in diagrams is just used to distinguish between deoxygenated and oxygenated blood but there’s no such thing as hving blue blood.