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Posted by Vinay Kumar 5 years ago (4698864)
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Posted by Shivani A Patil 5 years ago (9992595)
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Arpita .9 5 years ago (9105273)
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Posted by Dharmendra Pratap Singh Singh 4 years, 7 months ago (10094439)
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Sia ? 4 years, 7 months ago (6945213)
The physical world is highly complex. It has vast orders of magnitude in respect of mass, length and time. Even then all the physical phenomena can be explained in terms of few basic principles of physics. That is, it is possible to comprehend nature in terms of few basic laws in spite of its vast complexities. This is what Einstein meant to say.
Posted by Rebekah Augustine 5 years ago (9262284)
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Yogita Ingle 5 years ago (2577571)
The menstrual cycle is a reproductive cycle which takes place in the females of the group of primates. The menstrual cycle is divided into four phases:
(i) Menstrual phase: It extends from 1st to 4th day of the cycle. It occurs in the absence of fertilization. During this phase, bleeding occurs as the endometrium of the uterus is sloughed off. The menstrual flow consists of secretion of endometrial glands, cell debris, unfertilized ovum. After 4th day, once again the FSH secretion from the pituitary is resumed and the new follicle starts developing.
(ii) Follicular phase: When the ovary is in this phase, uterus enters in the proliferative phase. This takes place from 5th to 13th day of the cycle. During this phase new primordial follicle in the ovary develops due to the action of FSH from the pituitary. It gradually changes into Graafian follicle and production of oestrogen starts. Only one follicle develops in one cycle.Corresponding to the changes in the ovary, uterus also undergoes proliferation. Endometrial glands, stimulated by oestrogen do repair process of uterus.
(iii) Ovulatory phase: During this phase, ovulation takes place. It usually occurs on 14th day. Mature Graafian follicle ruptures due to LH secreted by pituitary. Graafian follicle bursts and releases the ovum. This ovum along with the follicular fluid is picked up by the fimbriae of infundibulum of fallopian tube. It passes through fallopian tube, where, if it happens to meet a sperm, it is fertilized. If not fertilized, the ovum degenerates.
(iv) Luteal phase: It corresponds with the secretory phase in uterus. It takes place between 15th to 28th day of the cycle.
Ovarian changes: In the ovary, corpus luteum is formed from empty Graafian follicle. Progesterone is secreted now. If ovum is fertilized, corpus luteum is retained. LH and LTH from pituitary help in the maintenance of corpus luteum. If ovum is not fertilized, corpus luteum degenerates and forms corpus albicans.
Uterine changes: Under the influence of progesterone, there is increase in the thickness of endometrium. Endometrial glands grow and become secretory. Progesterone is responsible for the maintenance of pregnancy. When fertilized ovum reaches the uterus, it is implanted and placenta is formed. Till placenta becomes functional corpus luteum keeps on producing progesterone. But when progesterone source is cut off, endometrium sloughs off and menstruation begins.
Posted by Sandeep A 5 years ago (9425911)
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Yogita Ingle 5 years ago (2577571)
The cell theory states as:
- All living organisms are made up of living cells
- Cell is the basic structural and functional unit of living organisms.
- All new cells arises from the pre-existing cells
There are many other scientists who contributed in the making of cell theory including Rudolph Virchow who contributed a lot.
Posted by Manish Goyal 5 years ago (3860921)
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Posted by Sanskruti Chavan 5 years ago (9713914)
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Posted by Samad Asim 5 years ago (10096185)
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Yogita Ingle 5 years ago (2577571)
Rajendra Chola's army marched up to the east coast of India, through Orissa, and up to the Ganga river. Rajendra Chola himself led the army up to the Godavari. The Chola army defeated Mahipala, king of Bengal. To commemorate this victory, he adopted the title of Gangaikonda and built a new capital called Gangaikonda-Cholapuram.
Posted by Rishabh Tiwari 5 years ago (9975435)
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Aahana ❄❄ 4 years, 10 months ago (10658470)
Shanti Bajaj 5 years ago (9988050)
Yogita Ingle 5 years ago (2577571)
Reproduction is the process of producing offsprings that are biologically or genetically similar to the parent organism.
Abi Tha 5 years ago (9900994)
Posted by Shreya. M Shreya.M 5 years ago (9946273)
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Devajyoti Mandal 5 years ago (9583110)
Posted by Adrija Samal 5 years ago (6048389)
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Yogita Ingle 5 years ago (2577571)
Five permanent member countries i.e France, Russia, UK, the US, China got veto power because they have been emerged as industrialised developed countries to stall any decision.
Posted by Adnan Padroo 5 years ago (9900667)
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Yogita Ingle 5 years ago (2577571)
Social exclusion is a form of discrimination. It occurs when people are wholly or partially excluded from participating in the economic, social and political life of their community, based on their belonging to a certain social class, category or group.
Posted by Jayant Rana 5 years ago (10087644)
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Posted by Shreya. M Shreya.M 5 years ago (9946273)
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Posted by Jasnoor Singh 5 years ago (10017986)
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Posted by Shruthi Singh 5 years ago (9972592)
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Posted by Adnan Padroo 5 years ago (9900667)
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Posted by Shiva Karthik 5 years ago (9705095)
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Yogita Ingle 5 years ago (2577571)
1st term t1 = (k + 1).
2nd term t2 = 3k.
3rd term t3 = (4k + 2).
Given that t1,t2,t3 are in AP.
We know that when they are in AP, their common difference will be:
t2 - t1 = t3 - t2
3k - (k + 1) = (4k + 2) - 3k
3k - k - 1 = 4k + 2 - 3k
2k - 1 = k + 2
2k = k + 2 + 1
2k = k + 3
2k - k = 3
k = 3.
Therefore the value of k = 3.
Posted by Ankit Dalal 5 years ago (10036012)
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Posted by Shivam Surayvansi 5 years ago (10095887)
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Deepak Kumar Meena 5 years ago (11283238)
Yogita Ingle 5 years ago (2577571)
When M Hamel came to know that it was his last day in the school where he spent 40 years of life so he had put on his fine sunday clothes.Villagers,who were habitual to postpone the things for tomorrow now came to understand that there was no time for them that they could do the french and learn it well.
Posted by Teja Shree 5 years ago (10095844)
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Aseem Mahajan 5 years ago (7640926)
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Yogita Ingle 5 years ago (2577571)
(i) A business plan is a comprehensively written down document prepared by the entrepreneur describing formally all the relevant external and internal elements involved in starting a new venture.
(ii) It is a ‘road map’ required by the venture to evolve from an early start up to a mature business.
(iii) It workout all the relevant external and internal elements involved in starting a new venture and then running it successfully.
(iv) It is a formal statement of a set of business goals to be achieved by the enterprise.
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