Answer:
The correct answer is oxygen.
Explanation:
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A, C, then B. <span>Hope this helps! Brainliest would be appreciated!</span>
This colored pigment is known as Hemoglobin. Hemoglobin is contained in the red blood cells of vertebrates and gives these cells their red color.
Answer:
1.chemical receptors
2. nerves carry signal to the brain
3. nerves carry signals to the muscle
4. the brain process these signals
5. the shark changes direction and swims towards pray
Explanation:
