Question
Which of the following is/are true about
‘Villi’? I. They are present in the walls of the small intestine. II. They contain numerous blood vessels which take the absorbed food to every cell of the body. III. They increase the surface area for absorption.Solution
The inner lining of the small intestine has numerous finger-like projections called Villi. It increases the surface area for absorption in the small intestines. The villi are richly supplied with blood vessels which take the absorbed food to each and every cell of the body, where it is utilised for obtaining energy, building up new tissues and the repair of old tissues. The unabsorbed food is sent into the large intestine where more villi absorb water from this material. Hence, option D is correct.
Among six friends S, T, U, V,W and X, who gets the second highest marks?
I. X gets more marks than U and W but not as much as T. V gets more mark...
How is C related to D?
I. C has two brothers, J is one of them.
II. D is the sister of K, who is the mother of J.
How many female members are there in family of ten members?
Statement I: Z is only son of Y, who is son-in-law of B. W is only daughter of C. L...
How is B related to C?
I. C and D are the sons of E. B is son of E’s father.
II. E is sister of B and mother of D, who is brother of C.
Five friends Harsha, Geeta, Naman, Suraj and Anuj are seated around a circular table facing the centre. Who sits to the immediate right of Suraj?
How is ‘dog’ coded in a code language?
I. ‘loyal and intelligent dog’ is coded as ‘la po hi do’
II. ‘dog is running fast’ ...
1. How many of them has given the lecture before C?
Six lecturers have to given lectures in the same week starting from Monday to Saturday each ...
Eight persons G, H, I, J, K, L, M and N are sitting around the circular table facing towards the centre. Who sits to the immediate left of I?
I. ...
J, K, L, M and N are sitting around a circular table facing the centre. Who are the immediate neighbours of J?
I. J is third to the right of K, w...
Seven persons Priyanka, Malti, Ruhi, Shivi, Teena, Unnati and Vipin were born on the same date of seven different years viz. 1998, 1999, 2000, 2001, 20...