Red blood cells carry oxygen around the body. These specialized cells are outfitted with the substance hemoglobin, which is a protein, and is the actual oxygen carrying molecule on the cell. The cell has a unique shape that allows it to carry as much oxygen molecules as possible. Red blood cells also transport carbon dioxide away from cells and back to the lungs where the cells are then re-oxygenated.
Answer:
There are not too many disadvantages of endoskeleton .
This is why most large animal around have them.
one large animal has one of the vunerability animals face without exoskeleton.
Explanation:
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B Gradually develops stiff outer cell wall for protection is the answer
Answer:
Xray
Explanation:
The shockwaves that it gives emit Xrays which would allow u to see it easily, also considering that a neutron star is a supernova remnant the answer is (B) X ray
<span>Nitrogen has five (5) valence electrons. Nitrogen needs 3 electrons to complete an octet. </span>The answer is three.