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Ask QuestionPosted by Meghana Rao 4 years, 11 months ago
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Kalp Shah 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
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Prokaryotes |
Eukaryotes |
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Prokaryotes are unicellular in nature |
Eukaryotes can be found as both unicellular and multi-cellular organisms |
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Prokaryotic cell range in size from 0.2 μm – 2.0 μm in diameter |
The size of Eukaryotic cells ranges from 10 μm – 100 μm in diameter |
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Prokaryotes do not have a nucleus |
Eukaryotes have a true nucleus |
Posted by 'Roshan' 'Sonekar' 4 years, 11 months ago
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Posted by Kunal Gaming Station 4 years, 11 months ago
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Posted by Vaishvi Sharma 4 years, 11 months ago
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Posted by Ruby Elizabeth 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
Chloroplasts are cell organelles present only in a plant cell and it includes:
- Stroma
- Inner membrane
- Outer membrane
- Thylakoid membrane
- Intermembrane Space.
Posted by Ayush Rai 4 years, 11 months ago
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Ayush Rai 4 years, 11 months ago
Posted by Sahil Kumar 4 years, 11 months ago
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Gaurav Seth 4 years, 11 months ago
Platinum with the atomic number 78 and an atomic mass of 195 in the periodic table is an extremely rare element found in the crust of the earth. The word Platinum is derived from Platina (Spanish word meaning ‘little silver’), because of its grey-white silvery colour. With an availability of 5g/kg in the earth’s crust, it is one of the rarest elements and is highly valuable for the same reason. Although it was discovered relatively later by European scientists, it has been found in Egyptian tombs dating back to 1200 BC.
Posted by Paro Kholi 4 years, 11 months ago
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Posted by Kunal Joshi 4 years, 11 months ago
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Meghna Thapar 4 years, 11 months ago
Following examples show that plastics are non-corrosive in nature : (i) They are used to store chemicals. For example cleansing chemical are very reacticve and store in plastic bottle. (ii) They are used to store all types of food, as it does not react to materials stored in it. (iii) It does not even react with air and water.
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Ashwin Saju 4 years, 11 months ago
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Ashwin Saju 4 years, 11 months ago
Meghna Thapar 4 years, 11 months ago
Water logging or soil salinition is the result of too much water given to the soil. Overhydration can lead to water intoxication. This occurs when the amount of salt and other electrolytes in your body become too diluted. Hyponatremia is a condition in which sodium (salt) levels become dangerously low. Water logging is the condition, in which too much water accumulates in the soil surface. Water logging can result because of over- irrigation of the agricultural field, the increase of the ground water level and flood.
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Ruby Elizabeth 4 years, 11 months ago
Meghna Thapar 4 years, 11 months ago
The supply of water to crops at different intervals is called irrigation . ... Different intervals means after break or providing time gap between two irrigations. We can also say that fields are not watered continuously but at different stages of plant growth. Irrigation is the process of supplying water to crops at different intervals. Explanation: Irrigation is the artificial application of water to land for the purpose of agricultural production.
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Ashwin Saju 4 years, 11 months ago
Meghna Thapar 4 years, 11 months ago
- The supply of water to the crops at different intervals of ti,e is called as irrigation.
- The time and frequency of irrigation vary from crop to crop, soil to soil and season to season. In the summer season, the frequency of watering is more due to the evaporation of water from the soil and leaves.
- In the case of wheat, irrigation is required at intervals during different stages of plant growth. Rice crop requires standing water in the field.
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Vedansh Mirajkar 4 years, 11 months ago
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Meghna Thapar 4 years, 11 months ago
Large scale cultivation of vegetable, fruit and flower is called horticulture. Floriculture, or flower farming, is a discipline of horticulture concerned with the cultivation of flowering and ornamental plants for gardens and for floristry, comprising the floral industry. The development, via plant breeding, of new varieties is a major occupation of floriculturists.
Yogita Ingle 4 years, 11 months ago
Large scale cultivation of vegetables, fruit, and flower is called horticulture.
Explanation:
- Horticulture is the practice of agriculture in which the garden crops generally fruits, vegetables, flowers, and ornamental plants are cultivated.
- Tamilnadu government set up a mission for the development of Horticulture in the state in 2003.
- Horticultural crops such as fruits are protective food.
- They provide vitamins and minerals to the body. These crops have aesthetic value and protect the environment.
- Horticultural crops 'require intense' care in planting, harvesting, packaging, storage, and packaging.
Posted by Vedansh Mirajkar 4 years, 11 months ago
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Ashwin Saju 4 years, 11 months ago
Meghna Thapar 4 years, 11 months ago
The definition of horticulture is the art or practice of gardening and cultivating plants and trees. When you grow lilac bushes and orchids, this is an example of horticulture. The horticulture industry can be divided into three areas: pomology, olericulture, and ornamental horticulture. Each area is unique and includes many career opportunities. Pomology is the planting, harvesting, storing, processing, and marketing of fruit and nut crops.
Yogita Ingle 4 years, 11 months ago
Horticulture is the branch of agriculture which deals with study of crops. It means the preparation of a bit of land for plating seeds and raising plants. It involves cultivation, propagation, processing and marketing of ornamental plants, vegetables, fruits, nuts, flowers etc.
Posted by Ayush Singh 4 years, 11 months ago
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The cells having nuclear material enclosed by a nuclear membrane are called eukaryotic cells. The organism whose cells possess a nucleus bound by a nuclear membrane are called eukaryotes.
Posted by Shubh Gautam 4 years, 11 months ago
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| Metals | Non metals |
| Metals react with oxygen and form oxides. These oxides are alkaline in nature. | Non metals react with oxygen to form oxides which are alkaline in nature. |
| Metals react with water to form oxides and hydroxides. | They do not react with water. |
| Metals react with acid to produce hydrogen gas. | Non metals do not react with acid. |
| More reactive metals can displace less reactive metals from their salt solutions. | They cannot displace less reactive metals from their salt solution. |
| Metals are good conductors of heat and electricity. | Non metals are poor conductors of heat and electricity. Like Graphite. |
| Metals have high density. | Non metals have low density. |
Posted by Rajnish Roy 4 years, 11 months ago
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Pratham Arora 4 years, 11 months ago
Pratham Arora 4 years, 11 months ago
Posted by Rajnish Roy 4 years, 11 months ago
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Posted by Rajnish Roy 4 years, 11 months ago
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Meghna Thapar 4 years, 10 months ago
The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon's gravity pulls on the Earth and makes the tides rise and fall every day. The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.
Posted by Rajnish Roy 4 years, 11 months ago
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Anushka Sanwal 4 years, 11 months ago
Posted by Rajnish Roy 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
The process of transferring the seedlings from the nursery to the main field by hand is called transplantation or transplanting.
Posted by Rajnish Roy 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
Structure of Bacteria
The structure of bacteria is known for its simple body design. Bacteria are single-celled microorganisms with the absence of the nucleus and other <a href="https://byjus.com/biology/cell-organelles/">c</a>ell organelles; hence, they are classified as prokaryotic organisms.
They are also very versatile organisms, surviving in extremely inhospitable conditions. Such organisms are called extremophiles. Extremophiles are further categorized into various types based on the types of environments they inhabit:
- Thermophiles
- Acidophiles
- Alkaliphiles
- Osmophiles
- Barophiles
- Cryophiles
Another fascinating feature of bacteria is their protective cell wall, which is made up of a special protein called peptidoglycan. This particular protein isn’t found anywhere else in nature except in the cell walls of bacteria.
But few of them are devoid of this cell wall, and others have a third protection layer called capsule. On the outer layer, one or more flagella or pili is attached, and it functions as a locomotory organ. Pili can also help certain bacteria to attach themselves to the host’s cells. They do not contain any cell organelle as in animal or plant cell except for ribosomes.
Ribosomes are the sites of protein synthesis. In addition to this DNA, they have an extra circular DNA called plasmid. These plasmids make some strains of bacteria resistant to antibiotics.
Posted by Rajnish Roy 4 years, 11 months ago
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Meghna Thapar 4 years, 11 months ago
A metal is a material that has a very lustrous appearance when polished, fractured or freshly prepared and has a high thermal and electrical conductivity. Heavy metals are a type of metals that have comparatively very high densities, atomic numbers, thermal and electrical conductivities, etc. Hence, the key difference between metal and heavy metal is that heavy metals have relatively very high densities, atomic weights or atomic numbers compared to other metals.
Toxicity is another major difference between metal and heavy metal. Some metals can be toxic while others are not, but heavy metals can be toxic when present in higher concentrations. Moreover, metals do not bioaccumulate easily, but heavy metals do.
Posted by Ashwin Saju 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
Coal and petroleum are formed as a result of degradation of ancient plant life which lived millions of years ago. These dead plant matter started to pile up, eventually forming a substance called peat. Over time, heat and pressure from geological processes transformed these materials into coal. Since these are formed from essentially fossils, they are also known as fossil fuels.
Posted by Khushal. H.S Khush 4 years, 11 months ago
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Yogita Ingle 4 years, 11 months ago
Coal:
1. Coal is a power resource, fossil fuel and fund resource.
2. Coal used directly in industries and indirectly for production of thermal power.
3. Different by-products of coal are used in various industries.
4. As a power resource, use of coal is decreasing.
5. Per unit heat and electricity generation from coal is less.
Petroleum:
1. Petroleum is a power resource, fossil fuel and fund resource.
2. Petroleum is also used directly for industries and indirectly for electricity generation.
3. Various by-products of crude oil are used in industries as raw materials.
4. Use of crude oil is increasing.
5. Per unit heat and electricity generation is much higher than coal.
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Yogita Ingle 4 years, 11 months ago
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