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Tanu Priya 5 years, 6 months ago
Yogita Ingle 5 years, 6 months ago
Apomixis is a mechanism to produce seeds without fertilization. This mechanism produces clones, hence can be considered as a form of asexual reproduction.
Apomixis can occur in a number of ways, some of which are mentioned below:
Nucellar cells which are diploid & located outside the embryo sac continuously divide and enter inside embryo sac and later develop into embryos. In this way, multiple embryos can exist inside one ovule. This is termed as Polyembryony. It is seen commonly in Citrus, mango etc..
Sometimes, the egg cell is not formed as a result of reduction division, hence diploid. This diploid egg cell later directly develops into an embryo.
Posted by Nikita Verma 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Tuber : It is a modified stem of the plant.
Potato is considered as a stem because it is having the nodes and inter nodes and even buds. these three characteristic of the potato has made it a stem instead of a tuber.
Posted by Alok Sharma 5 years, 6 months ago
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Nikita Verma 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Biennials are plants that complete their life cycle in two years. They germinate, develop a root system, stem and leaves in the first year. Later in their second year, they yield flowers and bear fruit. A few herbs are also classified as biennials, including spinach. Along with spinach and other herbs, biennials also include carrot, cabbage, petunias radish, onions, etc.
Posted by Kh Kothil Khulpuwa 5 years, 6 months ago
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Meghna Thapar 5 years, 6 months ago
Electricity is the presence and flow of electric charge (electrons) in one direction. ... It is a form of energy which we use to power machines and electrical devices. When electrical charges are not moving, electricity is called static electricity. A current of electricity is a steady flow of electrons. When electrons move from one place to another, round a circuit, they carry electrical energy from place to place like marching ants carrying leaves. Instead of carrying leaves, electrons carry a tiny amount of electric charge. Electricity is a form of energy. Electricity is the flow of electrons. All matter is made up of atoms, and an atom has a center, called a nucleus. The nucleus contains positively charged particles called protons and uncharged particles called neutrons.
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Meghna Thapar 5 years, 6 months ago
The sixth century BCE is often regarded as a major turning point in early Indian history. It is an era associated with early states, cities, the growing use of iron, the development of coinage, etc. It also witnessed the growth of diverse systems of thought, including Buddhism and Jainism. The C 600 BC saw the religious and economic reform movement in the Gangetic basin. Numerous religious sects arose in this area in Sixth Century BC. We hear of as many as 62 religious sects. Many of these sects were based on regional customs and rituals practiced by different people.
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Meghna Thapar 5 years, 6 months ago
Electrolyte: A substance that dissociates into ions in solution and acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, and phosphate are examples of electrolytes, informally known as lytes. Electrolyte monitoring is important in treatment of anorexia and bulimia. Electrolyte is a substance that dissociates into ions in solution acquires the capacity to conduct electricity. Sodium, potassium, chloride, calcium, magnesium, and phosphate are examples of electrolytes.
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Mohit Goswami 5 years, 6 months ago
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Meghna Thapar 5 years, 6 months ago
Money supply refers 'to the total sum of money available to the public in the economy at a point of time. That is, money supply is a stock concept in sharp contrast to the national income which is a flow representing the value of goods and services produced per unit of time, usually taken as a year. Money supply is a stock variable because it is expressed at a particular point of time.
Posted by Aditya Sharma 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Theory of demographic transition suggests that population growth in linked to overall levels of economic development and that every society follows a typical pattern of development related population growth. Low population growth in a society that is underdeveloped and technologically backward.
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Meghna Thapar 5 years, 6 months ago
The tapetum is a specialised layer of nutritive cells found within the anther, of flowering plants, where it is located between the sporangenous tissue and the anther wall. ... The unusually large nuclear constitution of the tapetum helps it in providing nutrients and regulatory molecules to the forming pollen grains. Usually the cells are larger and have more than one nucleus per cell. The nuclei of tapetal cells also split as the sporogenous cells undergo mitosis. Sometimes, this mitosis is not normal due to which many cells of mature tapetum become multinucleate. Tapetum nourishes the developing pollen grains. The layer of the anther wall that helps in anther dehiscence is endothecium. The cells of endothecium develop fibrous thickenings at maturity which radiate from the inner tangential walls. ... These thickenings are hygroscopic and thus, help in anther dehiscence.
Posted by Satish Kumar 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Credit creation separates a bank from other financial institutions. In simple terms, credit creation is the expansion of deposits. And, banks can expand their demand deposits as a multiple of their cash reserves because demand deposits serve as the principal medium of exchange.
Posted by Akanksha Gupta 5 years, 6 months ago
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Deepak Chorasiya 5 years, 6 months ago
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