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Preeti Dabral 3 years, 2 months ago
Amoeba feeds on microorganisms (like planktons) which float on water. It develops false feet or pseudopodia to surround the food finally captures the food within a sac-like structure called the food vacuole inside which digestion of food takes place.
Posted by Rewati Raman 🤓🤓🤓 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
Energy to be given to 1 C of charge to pass through 1 V potential difference = 1 J.
Energy to be given to 1C of charge to pass through 6 V battery = 6 J
or Ω = VQ = 6 volt ×1 coulomb = 6{tex}\frac JC\times\;1C=6\;J{/tex}
Posted by Rewati Raman 🤓🤓🤓 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
Terrestrial organisms take up oxygen from the atmosphere whereas aquatic animals obtain oxygen from water. Air contains more O2 as compared to water. Since the content of O2 in air is high, the terrestrial animals do not have to breathe faster to get more oxygen. Therefore, unlike aquatic animals, terrestrial animals do not need adaptations for gaseous exchange.
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Preeti Dabral 3 years, 2 months ago
Contraceptive methods are mainly used for the following reasons: to prevent unwanted pregnancies. To control population growth or fertility. To prevent the transmission of sexually transmitted diseases.
Posted by Pankaj Maurya 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
The human male reproductive system consists of:
- Testes - Are the primary reproductive organs in males which are in pair. These are oval shaped organs which lie outside the abdominal cavity. It makes the male *** cells called sperms and produces male *** hormones called testosterone. The testes are situated in the scrotal sac outside the main body cavity because the formation of sperms requires a lower temperature than the normal body temperature.
- ******* - Is a muscular pouch which houses the testes. It is present outside the abdominal cavity and maintains a lower temperature than the normal body temperature.
- Epididymis - The sperms formed in the testes goes into a coiled tube called epididymis which stores the sperms temporarily.
- Vas Deferens (sperm duct) - It is a long tube which carries the sperms from epididymis to another tube called urethra.
- Seminal vesicles and prostrate gland - Both these glands are present along the path of vas deferens and add their secretions to sperms which allows them to transport easily.
- ***** - It is an organ which passés the sperms from the man's body into the ****** in the women's body during mating.
The secretions of seminal vesicles and prostrate gland provide nutrition to the sperms and also make their transportation easier by secreting a thick liquid.
- A pair of Ovaries
- One on each side of uterus
- Produce female *** cell (ovum/ova)
- Secrete female hormones estrogen & progesterone
- Fallopian tube
- Exist in pairs , originating from uterus extending up to each ovary
- Receives ovum from ovary
- Uterus
- Pear-shaped muscular hollow structure
- Foetus develops here
- Cervix
- Narrow lower part of uterus
- ******
- Tube like structure
- Sperm discharge occurs here
- Acts as birth canal
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Preeti Dabral 3 years, 2 months ago
Lomov is a middle aged man of thirty five. He suffers from palpitations, cramps and benumbness of limbs. He is nervous and can. t speak and act like a calm and composed man.
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Posted by Rajendran Nithesh 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
| Conventional | Non- Conventional |
| 1. Conventional sources of energy are non-renewable sources of energy. | 1. Non-conventional sources of energy are renewable sources of energy. |
| 2. These sources get depleted with its use. | 2. These resources can be used again and again. |
| 3. These are traditional sources of energy. | 3. These are recently developed sources of energy. |
| 4. These causes large scale pollution. | 4. These are environment friendly resources. |
| 5. For example : Coal, petroleum, diesel, etc. | 5. For example: Solar energy, wind energy, tidal energy etc. |
Posted by Krishna Bansal 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
लेखक ने अपने आपको हिरोशिमा के विस्फोट का भोक्ता कब और किस तरह महसूस किया? Solution : लेखक हिरोशिमा की घटनाओ के बारे में सुनकर तथा उनके कुप्रभावों को प्रत्यक्ष देखकर भी विस्फोट का भोक्ता नहीं बन पाया। एक दिन वह जापान के हिरोशिमा नगर की एक सड़क पर घूम रहा था। अचानक उसकी नजर एक पत्थर पर पड़ी।
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Tanmay Bangur 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
A search engine is a Website that provides the required data on specific content. It also allows users to enter keywords related to particular topics and retrieve information. The minus sign in front of a word or phrase means that it includes first term but not the second term.
Posted by Haniya Thilak 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
Industrialisation is the period of social and economic change that transforms a human group from an agrarian society into an industrial society. This involves an extensive re-organisation of an economy for the purpose of manufacturing.
Shalini Pathak 3 years, 2 months ago
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Preeti Dabral 3 years, 2 months ago
Governments can intervene to promote equity, and reduce inequality and poverty, through the tax and benefits system. This means employing a progressive tax and benefits system which takes proportionately more tax from those on higher levels of income, and redistributes welfare benefits to those on lower incomes.
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Preeti Dabral 3 years, 2 months ago
भारत सरकार ने 25 दिसंबर 2000 को प्रधानमंत्री ग्राम सड़क योजना की शुरुआत की थी। इस योजना का प्रमुख उद्देश्य ग्रामीण इलाकों में 500 या इससे अधिक आबादी वाले (पहाड़ी और रेगिस्तानी क्षेत्रों में 250 लोगों की आबादी वाले गांव) सड़क-संपर्क से वंचित गांवों को बारहमासी सड़कों से जोड़ना है।
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Bhartendu Kushawah 3 years, 1 month ago
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