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Questions in biology

[Open]How is hemoglobin associated with respiration? Explain.

[Open]When you step on a sharp object, you move your foot away at once. What type of response is this?

[Open]Name three animals that breathe through their skin.

[Open]Why is it necessary to remove waste material from our body? Explain.

[Open]What is the full form of DNA?

[Open]What is the pericardium? Name the instrument used to measure blood pressure.

[Open]Describe the flow of blood in the human heart. Include a diagram for reference.

[Open]What is the abdominal cavity?

[Open]Why are lungs divided into very small sac-like structures?

[Open]What happens to the carbon dioxide collected in human tissues?