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Ask QuestionPosted by All Rounder Adarsh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The menstrual cycle is a series of cyclic physiologic changes that take place inside the female reproductive tract in primates. The whole cycle takes around 28 days to complete. The end of the cycle is accompanied by the breakdown of uterine endothelium, which gets released in the form of blood and mucous through the ******. This is known as menses. The follicle stimulating hormone (FSH), luteinizing hormone (LH), estrogen, and progesterone are the various hormones that regulate the menstrual cycle. The level of FSH and LH secreted from the anterior pituitary gland increases during the follicular phase. FSH secreted under the influence of RH (releasing hormone) from the hypothalamus stimulates the conversion of a primary follicle into a graafian follicle. The level of LH increases gradually leading to the growth of follicle and secretion of estrogen. Estrogen inhibits the secretion of FSH and stimulates the secretion of luteinizing hormone. It also causes the thickening of the uterine endometrium. The increased level of LH causes the rupturing of the graafian follicle and release the ovum into the fallopian tube. The ruptured graafian follicle changes to corpus luteum and starts secreting progesterone hormone during the luteal phase. Progesterone hormone helps in the maintenance and preparation of endometrium for the implantation of the embryo. High levels of progesterone hormone in the blood decrease the secretion of LH and FSH, therefore inhibiting further ovulation.
Posted by All Rounder Adarsh 5 years, 5 months ago
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Yogita Ingle 5 years, 5 months ago
The earth is surrounded by an envelope of air known as the atmosphere. This atmospheric air extends up to 300 kilometre above the earth’s surface, and iclings to the earth due to gravity. The atmospheric air exerts a force on all the objects in the atmosphere and on the earth. The force or thrust exerted by the atmospheric air on a unit area is defined as atmospheric pressure. The approximate value of atmospheric pressure on the earth’s surface is 1.013 x 105 Pa. The atmospheric pressure at a point is the same in all directions.
Posted by Suresh Bhai 5 years, 6 months ago
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Prince Gond 5 years, 5 months ago
Posted by Prince Raj 5 years, 6 months ago
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Tanisha Chhikara 5 years, 5 months ago
Posted by Prince Raj 5 years, 6 months ago
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Posted by Prince Raj 5 years, 6 months ago
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Posted by Prince Raj 5 years, 6 months ago
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Posted by Prince Raj 5 years, 6 months ago
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Meghna Thapar 5 years, 5 months ago
People depend on biodiversity in their daily lives, in ways that are not always apparent or appreciated. Human health ultimately depends upon ecosystem products and services (such as availability of fresh water, food and fuel sources) which are requisite for good human health and productive livelihoods. People depend on plants for food, clean air, water, fuel, clothing, and shelter. Nearly all food webs begin with plants, the primary producers. During photosynthesis, green plants use sunlight to change carbon dioxide from the air and water into simple sugars made of carbon, hydrogen, and oxygen.
Posted by Harleen Kaur Harleen 5 years, 6 months ago
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Posted by Shivam Shokeen 5 years, 6 months ago
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Posted by Anurag Kashyap 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Speed of sound = 342m/s
Echo returns in time, t =3s
Distance travelled by sound ,= v x t = 342 x 3 =1026 m
As the sound has to travel twice the distance from the source to and the reflecting surface during an echo.
Distance of the reflecting surface from the source = 1026/2 =513 m
Posted by Ranjana Poddar 5 years, 6 months ago
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Posted by Anurag Kashyap 5 years, 6 months ago
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Meghna Thapar 5 years, 5 months ago
This movement or spreading out is due to the fact that in liquids the particles are moving randomly. Diffusion in gases: When two or more different gases, like oxygen and nitrogen are mixed they will mix themselves evenly. We call this mixing of particles diffusion. This is due to the random movement of particles.
Posted by Mokam Singh 5 years, 6 months ago
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Posted by Siddarth Tyagi 5 years, 6 months ago
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Posted by Prince Raj 5 years, 6 months ago
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Sakshi Keshwani 5 years, 5 months ago
Posted by Prince Raj 5 years, 6 months ago
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Prince Gond 5 years, 5 months ago
Posted by Prince Raj 5 years, 6 months ago
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Harshita Walia 5 years, 6 months ago
Posted by Prince Raj 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Uses of Isobars
Following are the some of the uses of isobars:
- Nuclear reactors use isobars of uranium
- For the treatment of cancer, isobars of cobalt are used
- Isobars of iodine are used in the treatment of goiter
Posted by Prince Raj 5 years, 6 months ago
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Posted by Bhumika Arya 5 years, 6 months ago
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Posted by Teranika Tyagi 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Average kinetic energy of a gas is directly proportional to the absolute temperature.
Posted by Baljinder Singh 5 years, 6 months ago
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Meghna Thapar 5 years, 5 months ago
Differences between the planets Venus and Mars : Venus is hotter than Earth and is the hottest planet in the solar system (hotter than Mercury), Mars is colder than Earth. Venus is the second planet from the Sun , Mars is the fourth planet from the Sun.
Posted by Akhil Agrawal 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
In bed bug wings are absent to making them flightness insect . They are insect because they share most of the common charecter of the class insect like having a chitinous exoskrleton , compound eye etc.
Posted by Kailash Kumar 5 years, 6 months ago
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Posted by Mrityunjay Pandey 5 years, 6 months ago
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Gaurav Seth 5 years, 6 months ago
Electronic configuration of Chromium, with atomic number 24=
1s² 2s² 2p⁶ 3s² 4p⁶ 4s¹ 3d⁵
Posted by Het Proparty 5 years, 6 months ago
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Prince Raj 5 years, 6 months ago
Posted by Abhinav Jha 5 years, 6 months ago
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All Rounder Adarsh 5 years, 5 months ago
1Thank You