Sure! Here are the answers to the questions provided:
1. Functions of the Digestive System:
- Break down food into nutrients.
- Absorb nutrients into the bloodstream.
- Eliminate waste from the body.
2. Organs of the Digestive System:
- Mouth
- Esophagus
- Stomach
- Small intestine
- Large intestine
- Liver
- Pancreas
3. Functions of the Lungs:
- Exchange oxygen and carbon dioxide with the blood.
- Help regulate blood pH.
4. Process of Respiration:
- Breathing in (inhalation): Oxygen enters the lungs.
- Gas exchange: Oxygen moves into the bloodstream, while carbon dioxide moves from the blood into the lungs.
- Breathing out (exhalation): Carbon dioxide is expelled from the body.
5. Differences between Artery and Vein:
- Artery carries oxygenated blood away from the heart; vein carries deoxygenated blood back to the heart.
- Artery has thicker walls to withstand high pressure; vein has thinner walls and contains valves to prevent backflow.
6. Types of Blood:
- Red Blood Cells (carry oxygen)
- White Blood Cells (fight infection)
- Platelets (help with blood clotting)
- Plasma (liquid component of blood)
7. Main Function of the Kidney:
- Filter blood to remove waste and excess fluids to form urine.
8. Functions of the Urinary System:
- Regulate blood pressure.
- Regulate electrolyte levels.
- Maintain acid-base balance.
- Remove waste from the body through urine production.
These answers should provide a good overview of the key points related to each question. If you have any further questions or need more details, feel free to ask!
