Name the hormone, the secretion of which is responsible for dramatic changes in appearance in girls and boys when they approach 10-12 years of age.
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if a girls father in law is father of a boy father in law the what is the relation between girls and boy
Ans:- The Girl is Mother-in-law of the Boy.
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Dramatic changes of body features associated with puberty are mainly because of secretion of
(c) testosterone from testes and estrogen from ovary
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2 boys and 2 girls are in Room X, and 1 boy and 3 girls in Room Y.
Let us denote 2 boys and 2 girls in room X as B1, B2 and G1, G2 respectively. Let us denote 1 boy and 3 girls in room Y as...
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The number of boys and girls in a class are in the ratio 7:5.The number of boys is 8 more than the number of girls. What is the total class strength?
Let the no. of girls be 5x No. of boys=7x According to the question 5x+8=7x 7x-5x=8 2x=8 x=8/2 x=4 No. of girls=5*4=20 no. of boys=7*4 or 5*4+8=28 Hence the total strength of the class is 20+28=48
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Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
(a) Testes produce sperms and secrete a hormone called testosterone. The function of testosterone is to control the development of male sex organs and secondary sexual features. (b) (i) Oviduct or fallopian tubes...
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2 boys and 2 girls are in Room X, and 1 boy and 3 girls in Room Y. Specify the sample space for the experiment in which a room
Let us denote 2 boys and 2 girls in room X as B1, B2 and G1, G2 respectively. Let us denote 1 boy and 3 girls in room Y as...
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In how many ways can 5 boys and 5 girls be seated at a round table no two girls may be together ?
Leaving one seat vacant between two boys may be seated in 4! ways. Then at remaining 5 seats, 5 girls any sit in 5! ways. Hence the required number =...
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4 boys and 2 girls are to be seated in a row in such a way that the two girls are always together. In how many different ways can they be seated?
(d) Assume the 2 given students to be together (i.e one]. Now there are five students. Possible ways of arranging them are = 5! = 120 Now, they (two girls) can arrange themselves...
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There are 1224 students in a school in which 600 are girls. What is the ratio of boys to girls in the school?
(a) Total number of students = 1224 Total number of girls = 600 Total number of boys = 1224 - 600 = 624 Required ratio = 624 :600 = 26 : 25
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State why heat changes in physical and chemical processes are indicated by enthalpy changes and not by entropy changes?
Most of the processes are carried out in an open system i.e, at constant pressure.
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