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Ask QuestionPosted by Hari Pillai 4 years, 3 months ago
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Posted by Arshpreet Kaur 4 years, 3 months ago
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Sai Dhanush Reddy 4 years, 3 months ago
Saubia Bellary 4 years, 3 months ago
Gaurav Seth 4 years, 3 months ago
206
The human skeleton is the internal framework of the human body. It is composed of around 270 bones at birth – this total decreases to around 206 bones by adulthood after some bones get fused together. The bone mass in the skeleton reaches maximum density around age 21.
Posted by Pawan Singh Rathore 4 years, 3 months ago
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Gaurav Seth 4 years, 3 months ago
A small part of a plant which is removed by making a cut with a sharp knife is called a 'cutting'. A cutting may be a piece of stem, root or even a leaf. While making a cut, care should be taken to see that there are some buds on it. Cutting is a part of artificial reproduction. In this method, a cutting of the parent plant (say, of stem or shoot) having some buds on it is taken and its lower part is buried in the moist soil. After a few days, the cutting develops roots, shoot and grows into a new plant.
Pawan Singh Rathore 4 years, 3 months ago
Posted by Khushi Bhudiya 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
| Monocotyledon | Dicotyledon |
| The monocot embryos have a single cotyledon | The dicot embryos have a pair of cotyledons |
| They have a fibrous root system | They have a tap root system |
| Leaves in monocots have parallel venation | Leaves in dicots have reticulate or net venation |
| In monocot flowers, the count of parts of the flower is a multiple of three or equal to three | The count of parts in a dicot flower is a multiple of four or five or equal to four or five |
| The roots and stems of Monocotyledons does not possess a cambium and cannot increase in diameter | The roots and stems of Dicotyledons possess a cambium and have the ability to increase in diameter. |
| A few examples of monocotyledons are garlic, onions, wheat, corn and grass | A few examples of dicots are beans, cauliflower, apples and pear |
Posted by Om Bhatt 4 years, 3 months ago
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Gaurav Seth 4 years, 3 months ago
Methods of soil conservation:
- Contour ploughing: Ploughing along the contour lines can check the flow of water down the slopes. It is called contour ploughing. It can be practised on the hills.
- Terrace cultivation: Steps can be cut out on the slopes making terraces. It restricts soil erosion. It is practiced in western and central Himalayas.
- Strip cropping: Large fields can be divided into strips. Strips of grass are left to grow between the crops. This breaks up the force of wind. This method is called strip cropping.
- Planting of shelter belts: Planting lines of trees to create shelter also checks the soil erosion. Rows of such trees are called Shelter Belts. These shelter belts have contributed significantly to the stabilisation of sand dunes and in stabilising the desert in western India.
Posted by Kaushilya Yadav 4 years, 3 months ago
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Kaushilya Yadav 4 years, 3 months ago
Posted by Kaushilya Yadav 4 years, 3 months ago
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Sai Dhanush Reddy 4 years, 3 months ago
Pawan Singh Rathore 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
Agriculture refers to the human activity of cultivating crops and plantation for production of food and goods such as wheat, rice, pulses, cotton, sugarcane, jute, oil seeds, etc. Agriculture consists of two words – agri and culture. Agri means the land and culture means to cultivate or tend.
Kaushilya Yadav 4 years, 3 months ago
Posted by Kaushilya Yadav 4 years, 3 months ago
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Yogita Ingle 4 years, 3 months ago
The outer covering of a seed is called the seed coat. Seed coats help protect the embryo from injury and also from drying out.
Posted by Nandan Nandu 4 years, 3 months ago
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Posted by Abhiraj Prakash 4 years, 3 months ago
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Sai Dhanush Reddy 4 years, 3 months ago
Yogita Ingle 4 years, 3 months ago
Protein also builds organs such as your heart. Your bones even need protein to grow, and stay strong and healthy. As you can see, protein is important to your health.
Posted by Shanvi Shukla 4 years, 3 months ago
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Gaurav Seth 4 years, 3 months ago
- An example of solids: solid ice, sugar, rock, wood, etc.
- Example of a liquid state of matter: water, milk, blood, coffee, etc.
- An example of gases: air, helium, nitrogen, oxygen, carbon dioxide, etc.
Posted by Sapna Tiwari 4 years, 3 months ago
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Posted by Hari ⚡🐯♌ 4 years, 4 months ago
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Sai Dhanush Reddy 4 years, 3 months ago
Ks Manjunatha 4 years, 4 months ago
Posted by Hari ⚡🐯♌ 4 years, 4 months ago
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Posted by Hari Pillai 4 years, 4 months ago
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Posted by Sanskar Sharma 4 years, 4 months ago
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Posted by Hari ⚡🐯♌ 4 years, 4 months ago
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Gaurav Seth 4 years, 4 months ago
DNA is known as Deoxyribonucleic Acid. It is an organic compound that has a unique molecular structure. It is found in all prokaryotic cells and eukaryotic cells.
“DNA is a group of molecules that is responsible for carrying and transmitting the hereditary materials or the genetic instructions from parents to offsprings.”
Posted by Hari ⚡🐯♌ 4 years, 4 months ago
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Gaurav Seth 4 years, 4 months ago
Seed germination may be defined as the fundamental process by which different plant species grow from a single seed into a plant. This process influences both crop yield and quality.
A common example of seed germination is the sprouting of a seedling from a seed of an angiosperm or gymnosperm.
Posted by Hari ⚡🐯♌ 4 years, 4 months ago
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Sai Dhanush Reddy 4 years, 3 months ago
Yogita Ingle 4 years, 4 months ago
- Plants come from seeds.
- This happens when the seeds are planted in the ground and sprout (begin to grow).
- Before a seed can sprout, it must go through a process called germination.
- The process of germination happens inside the seed.
Anika Nair 4 years, 4 months ago
Posted by Shweta Bansal 4 years, 4 months ago
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Anay Chitale 4 years, 4 months ago
Gaurav Seth 4 years, 4 months ago
- Desert plants have developed roots that are deep seated in ground to suck water up
- they waxy leaves to check transpiration
- their leaves are modified to spines
- the stems are made green to perform photosynthesis
- huge amount of water is stored in cell vacuole
- they have sunken stomata
Posted by Sushmita Sharma 4 years, 4 months ago
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Gaurav Seth 4 years, 4 months ago
Plants with the seed having only one cotyledon are called as monocots, and the plant is called as monocotyledons.
Plants with the seed having two cotyledons are called as dicots and plant is called as dicotyledons.
In monocots the embryo has only one cotyledon, the pollen tube contain single pore or furrow (monocolpate), whereas in dicots the embryo has two cotyledons and the pollen tube have three or more pore or furrow (tricolpate).
Posted by Pranjali Majumder 4 years, 4 months ago
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Iccha Lungare 4 years, 2 months ago
Elena Sibichen 4 years, 4 months ago
Posted by Pratistha K Kashyap 4 years, 4 months ago
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Yogita Ingle 4 years, 4 months ago
A farmer performs following eight major steps from crop selection to harvesting:
- Crop Selection.
- Land Preparation.
- Seed Selection.
- Seed Sowing.
- Irrigation.
- Crop Growth.
- Fertilizing.
- Harvesting.
Posted by Kushagra Singh 4 years, 4 months ago
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Jugal Krishna Sasmal 4 years, 3 months ago
Yogita Ingle 4 years, 4 months ago
A seed is an important part of a flowering plant. They give rise to a new plant. They may be of different shapes, colours and sizes. They may be round, wrinkled, winged or hairy.
Posted by Mb Debbarma 4 years, 4 months ago
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Sushmita Sharma 4 years, 4 months ago
Yogita Ingle 4 years, 4 months ago
Matter is anything which occupies space and has mass is called matter. Air and water, sugar and sand, hydrogen and oxygen etc.
Posted by Nayan Kumar 4 years, 4 months ago
- 2 answers
Jugal Krishna Sasmal 4 years, 4 months ago
Yogita Ingle 4 years, 4 months ago
A farmer performs following eight major steps from crop selection to harvesting:
- Crop Selection.
- Land Preparation.
- Seed Selection.
- Seed Sowing.
- Irrigation.
- Crop Growth.
- Fertilizing.
- Harvesting.
Posted by Swarit Bora 4 years, 4 months ago
- 4 answers
Gaurav Seth 4 years, 4 months ago
A tsunami is a series of huge waves caused by the shifting of large amounts of ocean water. Tsunamis are also caused by volcanic eruptions and underwater landslides.
The 2004 Indian Ocean tsunami, also called Asian Tsunami was the most devasting Tsunami in the history. The wave was the result of an earthquake with the epicentre close to Sumatra.
Meghna Thapar 4 years, 4 months ago
A tsunami is a natural disaster which is a series of fast-moving waves in the ocean caused by powerful earthquakes, volcanic eruptions, landslides, or simply an asteroid or a meteor crash inside the ocean. A tsunami has a very long wavelength. It can be hundreds of kilometers long. Usually, a tsunami starts suddenly. A tsunami is a large ocean wave that is caused by sudden motion on the ocean floor. This sudden motion could be an earthquake, a powerful volcanic eruption, or an underwater landslide. ... Tsunamis travel across the open ocean at great speeds and build into large deadly waves in the shallow water of a shoreline.
Posted by Nayan Kumar 4 years, 4 months ago
- 2 answers
Yogita Ingle 4 years, 4 months ago
Plants produce many seeds to ensure the continuation of the species. The seed contains the embryo that will later grow into a new plant.
Posted by Nayan Kumar 4 years, 4 months ago
- 3 answers
Gaurav Seth 4 years, 4 months ago
Each seed contains a tiny plant called an embryo, which has root, stem and leaf parts ready to grow into a new plant when conditions are right. Another part of the flower (the ovary) grows to form fruit, which protects the seeds and helps them spread away from the parent plant to continue the cycle.
Posted by Prem Raj 4 years, 4 months ago
- 2 answers
Yogita Ingle 4 years, 4 months ago
A preservative is a substance or a chemical that is added to products such as food products, beverages, pharmaceutical drugs, paints, biological samples, cosmetics, wood, and many other products to prevent decomposition by microbial growth or by undesirable chemical changes.
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