Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Krishna Kk 4 years, 1 month ago
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Soumya Mishra 4 years, 1 month ago
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Posted by Deepanshi Kaushik 4 years, 1 month ago
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Anshika Tyagi 4 years, 1 month ago
Meghna Thapar 4 years, 1 month ago
Niels Bohr, revised Rutherford’s atomic model and put forth the following suggestions:
Neils Bohr proposed that the electrons possess a specific amount of energy which allows them to revolve around the nucleus. The electrons are confined to these energy levels. While revolving in these discrete orbits, the electrons do not radiate energy. Hence, these orbits are also known as stationary orbits or stationary shells. Smaller the size of the orbit, smaller is its energy.
Posted by Dhairya Chitransh 4 years, 1 month ago
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Sumit Kumar 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
1) While start heating, acetone separates from the water because of the lower boiling point compared to the water.
2) When the temperature becomes at 56 degree Celsius thermometer reading becomes constant.
3) The boiling point of acetone is 56-degree Celsius.
4) The difference in boiling water was the reason for separation."
Anshika Tyagi 4 years, 1 month ago
Posted by Khushi Kumawat 4 years, 1 month ago
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Soumya Mishra 4 years, 1 month ago
Aliya Mizaj 4 years, 1 month ago
Deepika Sharma 4 years, 1 month ago
Anant Singh 4 years, 1 month ago
Posted by Harsh Kumar 4 years, 1 month ago
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Ram Pal 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
| Prokaryotic cell | Eukaryotic cell | |
| 1 | Nucleus absent | Nucleus present |
| 2 | One chromosome present | More than one chromosome |
| 3 | Membrane bound cell organelles absent | Membrane bound cell organelles present |
| 4 | Cell size very small. | Cell size comparatively larger. |
| 5 | Cell division occurs by budding or fission. | Cell division occurs by mitosis or meiosis |
Posted by Nifty Sharma 4 years, 1 month ago
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Posted by Ankit Singh 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
J. E. Purkinje in the year 1839 coined the term 'protoplasm' for the fluid substance of the cell.
Posted by Mukul Gupta 4 years, 1 month ago
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Chhavi Sharma 4 years, 1 month ago
Aliya Mizaj 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
Everything that exists in the earth is a form of a matter which is further defined as any substance that occupies space and has mass. The matter is further divided into various forms such as solid, liquid and gas.
Bhumika Sharma ✓ 4 years, 1 month ago
Posted by K.Kaviya Ix A 9032 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
The following precautions can be take:
- Take bath daily
- Keep yourself clean and hygenic
- Wash your hands before and after eating food
- Keep your surroundings clean
- Have a balanced diet
- Exercise daily
- Maintain proper disposal of waste or garbage
- Have clean drinking water
- Avoid the places of over crowding
Posted by K.Kaviya Ix A 9032 4 years, 1 month ago
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Manish Kumar 4 years, 1 month ago
Posted by K.Kaviya Ix A 9032 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
| Infectious diseases | Non-infectious diseases |
| Diseases that spread from one person to another are called communicable diseases. | They do not spread to others and they restrain within a person who has contracted them |
| They are caused by microorganisms called pathogens such as bacteria, protozoans, viruses, etc. | These dise ases are caused by pathogens, but other factors such as age, nutritional deficiency, the gender of an individual, and lifestyle also influence the disease |
| Examples: Cholera, chickenpox, malaria | Examples: Diabetes, cancer, asthma, etc. |
Posted by Gourav Yadav 4 years, 1 month ago
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Gaurav Seth 4 years, 1 month ago
The specific function of the cardiac muscle is to control the contraction and relaxation of the heart.
The uninucleated, striated, tubular and branched muscles that form the wall of heart are known as cardiac muscles. They serve to bring about rhythmic contraction and relaxation of heart to allow pumping of blood throughout the life. Since, these muscles contract without any nerve stimulation/control, they are involuntary in nature.
Posted by Srestha Ghosh 4 years, 1 month ago
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Posted by Amana Fathima Shanavas 4 years, 1 month ago
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Sabaya Debbarma 4 years, 1 month ago
Posted by Sabaya Debbarma 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
A cell performs these major functions essential for the growth and development of an organism. Important functions of cell are as follows:
Provides Support and Structure
All the organisms are made up of cells. They form the structural basis of all the organisms. The cell wall and the cell membrane are the main components that function to provide support and structure to the organism. For eg., the skin is made up of a large number of cells. Xylem present in the vascular plants is made of cells that provide structural support to the plants.
Facilitate Growth Mitosis
In the process of mitosis, the parent cell divides into the daughter cells. Thus, the cells multiply and facilitate the growth in an organism.
Posted by Nayan . R Nayan . R 4 years, 1 month ago
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Posted by Jungkook Jeon 4 years, 1 month ago
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Poonam Anand 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
Diseases which do not spread from one person to another is called non-infectious diseases.
Example, cancer.
Posted by Jungkook Jeon 4 years, 1 month ago
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Poonam Anand 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
Diseases which can spread from one person to another and microbes are the immediate cause for these diseases are called infectious diseases. Example, typhoid
Posted by Jungkook Jeon 4 years, 1 month ago
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Poonam Anand 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
Those diseases which last for very short period of time are called acute diseases. Example, headache and cold.
Posted by Jungkook Jeon 4 years, 1 month ago
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Aliya Mizaj 4 years, 1 month ago
Poonam Anand 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
The diseases which last for very long period of time are called chronic disease Example, tuberculosis and jaundice.
Posted by Hemadharshini P 4 years, 1 month ago
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Rajnish Mishra 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
It is the ability of an atom to gain or lose electron in order to achieve the noble gas configuration. It refers to the ability of an element to combine with other element. It is obtained by determining the number of electrons in the outermost shell (also called valence shell) of each atom of an element. For instance, sodium has 1 electron in its outermost shell and hence valency of sodium is 1.
Posted by Dhyey Modha 4 years, 1 month ago
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Yogita Ingle 4 years, 1 month ago
Gaseous state
- They do not have definite shape and take up the shape of the container.
- They do not possess definite volume due to weakest intermolecular forces.
- They are not rigid.
- They are easily compressible due to excess space between the particles of gas which compresses on applying pressure.
- They can easily undergo diffusion due to the fact that molecules in a gas moves at a very fast rate due to which speed of diffusion is very large.
- They can flow in all possible directions.
Jatin Varshney 4 years, 1 month ago
Posted by Saraswaty Chandel 4 years, 1 month ago
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Posted by Freddy Mon 4 years, 1 month ago
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Meghna Thapar 4 years ago
Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands. They perform a variety of functions that include protection, secretion, absorption, excretion, filtration, diffusion, and sensory reception. Epithelial tissue is scutoid shaped, tightly packed and form a continuous sheet. It has almost no intercellular spaces. All epithelia is usually separated from underlying tissues by an extracellular fibrous basement membrane. The lining of the mouth, lung alveoli and kidney tubules are all made of epithelial tissue.
Posted by Chetna Mehra 4 years, 1 month ago
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Deepika Sharma 4 years, 1 month ago
Yogita Ingle 4 years, 1 month ago
True, Atoms are always neutral in nature. The nucleus of an atom (contains protons and neutrons) remains unchanged after ordinary chemical reactions, but atoms can readily gain or lose electrons.
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Dhanyatha S Maddodi 4 years, 1 month ago
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