P-1 Gravitation — Science STD 10 — Question

Read the following extract and answer the questions that follow:
A liberal view behind the concept of organ and body donation is that after death our body should be useful to other needful persons so that their miserable life would become comfortable. Awareness about these concepts is increasing in our country and people are voluntarily donating their bodies.
Life of many people can be saved by organ and body donation. Blinds can regain their vision. Life of many people can be rendered comfortable by donation of organs like liver, kidneys, heart, heart valves, skin, etc. Similarly, body can be made available for research in medical studies. Many government and social organizations are working towards increasing the awareness about body donation.
i. What is the liberal view behind the organ and body donation?
ii. Name any four organs that can be donated.

To obtain a magnified real image of a small film strip, which type of lens is used? Where is the film strip placed to obtain the image on the screen?

What is autonomic nervous system? What is its function?

DEFINE : Rare species:

What is the difference between the food habits of organisms belonging to the first and the third trophic levels? Give one example each of the organisms belonging to these two trophic levels.

Which different hormones control the functions of human reproductive system throughchemical co-ordination?

Define reduction reaction.

State the following statements into chemical equations and then balance them: what happens when aluminium oxide dissolves in aqueous sodium hydroxide?

Is the number of shells the same in these?

What is the shape of field lines inside a current-carrying solenoid? What does the pattern of field lines inside a current-carrying solenoid indicate?