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Mention five reasons to show importants of ploughing?

What is meant an 'embryo' ? Can we identify the body features in an embryo?

Oxygen consuming bacteria are commonly known as

A doctor diagnosed a patient with iron deficiency and gave him tablets containing iron .but the tablets were not hard and did not look like an iron at all what do you think the tablet contain

Could you please check my answer

Ans: the iron tablet would have been made from some iron salts as our body can't digest the iron metal as a whole the doctor gives us iron salt in iron tablets.

Birds travelling long distances to overcome harsh conditions are known as

What is eukaryotic cells

White blood cells can change their shape.what is the advantage of this property of white blood cells?

Give reason in short: applying fertilizer s increase in quality of crop

State the merits of Whittaker's method of classification?

The medicines which stop the growth of disease causing microorganisms are known as___

Saliva is secreted by ____.

Answer in one or two words:

What is current population size in the world of lion?

Which of the following are not viral diseases?

1.Chicken pox
2. Polio
3. Measles
4. Malaria
5. Typhoid
6. Rabies
7. Tuberculosis
8. Leprosy

The carbon dioxide rich blood is present in:

Question 9 (iii)
Carry out the following osmosis experiment:
Take four peeled potato halves and scoop each one out to make potato cups. One of these potato cups should be made from a boiled potato. Put each potato cup in a trough containing water. Now,
(a) Keep cup A empty
(b) Put one teaspoon sugar in cup B
(c) Put one teaspoon salt in cup C
(d) Put one teaspoon sugar in the boiled potato cup D.
Keep these for two hours. Then observe the four potato cups and answer the following:

(iii) Explain why water does not gather in the hollowed out portions of A and D.

The technique in which cellular components are coloured for better observation is called _____.

Which of the following is/are true for writing scientific names?

What would happens to the all if nucleus is removed? Give two reasons to support your answer

Which among the following are the services provided by plants?

Regarding assertion and reason, choose the right option
Assertion [A] - The earth is a closed system with respect to matter and open with respect to energy.
Reason [R] - Energy is not recycled in an ecosystem.

Enzyme TPA or tissue plasminogen activator is used for:

Identify the gland which swells due to goitre.

The diagram below represents which method of vegetative propagation.

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Identify the correct statements from the following options.

1. Bacteria typically store their single standard DNA in a single, circular chromosome.
2. Bacterial DNA is present in nucleus.
3. Some bacteria have multiple chromosomes.
4. The DNA of bacteria is not associated with histones.
5. Bacteria don't have smaller, circular DNA molecules called plasmids.
6. E. coli contain only about 4.6 million base pairs compared to the average human chromosome's 139 million.

Two water tanks which hold equal quantity are present at two ends of the garden.
Kumar connected perpendicular pipes with nozzles through a long pipe to one tank.
John channelised water from another water tank in such a way that the water reaches slowly to the roots of plants.

What kind of irrigation method was used by Kumar and John respectively?

Which of the following species of rhinoceros is said to be the most critically endangered species?

Codes:

Why is breathing important for us? Can we live without breathing?

Why does plant cell poses large sized vacuole?

Following is the picture of ___ .

The cells in our body divide in order to:

Animals release $C{O}_2$ during respiration is a well known fact but how is the same $C{O}_2$ released naturally?

Direction: Given below are two statements, one labeled as Assertion (A) and other labelled as Reason (R). In the context of the given two statements which of the following correct?

Codes:

Assertion (A): Hardwood trees are found in the tropical regions.

Reasons (R): High temperature and high rainfall are the characteristic features of tropical regions.

Identify the female secondary sexual characteristic from the following:

Which organelle of the cell controls all its activities?

__ is the surrounding where an organism lives.

What did Engelmann conclude about the congregation of bacteria in the red and blue areas?

Question 19

Paheli has a rose plant in her garden. How can she increase the number of rose plants in the garden?

A magnifying glass is also called a

Based on the following options, how does a plant cell differ from an animal cell?

Name the micro organism that you observe growing on bread, cake and sometimes on your skin.

Which of the following is an endangered species of animals?
(a) Dinosaur
(b) Asiatic lion
(c) Irish deer
(d) Hyena

Which of the following human disease can be prevented by the same hormone which brings about metamorphosis in frogs ?

(a) diabetes (b) anaemia (c) goitre (d) rickets