Question

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1) What is parasitic nutrition? Write briefly about it.
2) Draw a flow chart of Respiratory passage of Humans.
3) What will happen if pulmonary veins are tied with a thread?

Answer 1

Answer:1

1. Parasitic nutrition is that nutrition in which an organism derives its food from the body of another living organism without killing it.
2. The organism which obtains the food is called a parasite and the organism from whose body food is obtained is called the host.
3. A parasite usually harms the host.
4. The host may be a plant or an animal.
5. Parasitic mode of nutrition is seen in several fungi, bacteria, a few plants like cuscuta and animals like plasmodium.

answer 2
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Answer3
Answer:
The pulmonary vein brings oxygenated blood from the lungs and open into left auricle. If the pulmonary veins are tied with a thread the oxygenated blood will not supply to the heart and body parts from the lungs. Hence the person will die because of lack of oxygen.