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Answer the following.

How do you protect soil from being polluted?

What is the given instrument called?

Unscramble the words given in the options to identify the instrument.

Oxygen rich blood from pulmonary veins pours into

Which hormone regulates the process of spermatogenesis and sperm formation?

Why is prevention better than cure?

Where does the first step in urine formation start?

During multiple fission in Plasmodium, nucleus undergoes …………………………

Fruits which develop without the act of fertilization are known as__.

A food web is formed by the interconnection of different ____.

Traits of organism are controlled and regulated by

Which chamber of heart has thickest wall __?

Name the disease caused by the deficiency of insulin hormone in the body.

A photosynthesising plant is releasing ¹⁸O more than the normal amounts; thus, the plant must be supplied with

Function of testis(5 points)

Match the level of organization in structure of protein (Column I) with its feature/type of folding (Column II) and functional status (Column III):

Body is divided into segments in:

In this experiment, how does KOH affect the process of photosynthesis in the plant kept in a bell jar?

The diagram shows cells from a storage organ of a flowering plant after treatment with iodine solution. Structures X stains black. What does the structure X of the cell contain?

Name the various parts of flower.

Current concentration of $C{O}_2$ in atmosphere is:

Can you explain lymphatic system

The diagram below represents the breakdown of glucose by various pathways. Choose the correct option.

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Name the valve present between the right auricle and right ventricle.

Gibberellins can promote seed germination because of their influence on

The chipko andolan( hug of the trees movement) was the result of a grass-root level effort to end, alienation of people from their forests. The movement originated from an incident in a remote village called Reni in Garhwal. There was a dispute between local people and a logging contractor who had been allowed by the government to fell trees in the forest. On a particular day, the contractor's workers appeared in the forest to cut the trees while the men folks were absent. But the women of the village reached the forest quickly and clasped the tree trunks thus preventing the workers from felling the trees. Thus thwarted, the contractor had to withdraw.What would have happened, if chipko andolan did not arise?

Why simple diffussion will not meet the requirements of all the cells of multi-cellular organisms?

In genetic engineering, a vector is used to __________

Organic manure is considered better than fertilizers because:

Question 47

Give reasons for the appearance of new combinations of characters in the F2 progeny.

Which of the following is/are radioactive pollutant(s)?

Identify the component marked '?' in the following image.

The pineal gland of the human brain secretes melatonin concerned with

Total number of $\text{ATP}$ produced through $\text{ETS}$ only from one molecule of $3$-phosphoglycerate in aerobic respiration is

Which of the following may exist in enantiomorphs