Which of the following statements is correct?
ADigestion of carbohydrates starts in stomach.
BHeart expands in size when air enters the body.
CCirculatory system transports blood from lungs to various parts of the body.
DKidneys, lungs and skin form the excretory system.
The cells shown in the figure can be found in the blood.
Which of the following statements is/are correct regarding these cells?
(i) They do not have nucleus.
(ii) They help the body to fight against infections.
(iii) They help the blood to clot.
(iv) They help to transport oxygen.
A (ii) only
B (i) and (ii) only
C (i), (ii) and (iii) only
D (i), (iii) and (iv) only
If Pallavi takes leaves on 17th and 18th of October and comes to office only on even number of days in October 20XX, then how many days she comes to office? (Assume that every Saturday and Sunday is holiday)
Study the given relationships carefully and select the option which correctly identifies P-S.
(i) Pistia : Hydrilla : : Wolffia : P
(ii) Pigeon : Ostrich : : Sparrow : Q
(iii) Chickenpox : Tetanus : : Mumps : R
(iv) Wildebeest : Snake : : Deer : S
Which of the following statements is/are correct?
(i) Longer line in the symbol for a cell represents its negative terminal.
(ii) The combination of two or more batteries is called a cell.
(iii) Fuse wire is made up of alloys which has high melting point.
(iv) Electromagnet loses its magnetism when the current flowing through it is switched off.
B(ii) and (iii) only
C(i), (ii) and (iv) only
D(i), (ii), (iii) and (iv)
Rita has gone to Antarctica on a science trip. Select the option which on unscrambling gives name of a clothing that she can wear over there.
The answer is C because A is Shorts, B is Skirt, C is Sweater and D is Raincoat . She will wear a Sweater in Antarctica