Fill in the blanks (a) ——— disease continues for many days and causes——— on body.

(a) Communicable  (b) Fungi  (c) Bacteria  (d) Vector

The force applied by the horse balances the force of friction.

(a) Burning of wood and coal causes pollution of air.  (b) A liquid fuel used in homes is LPG.  (c) Fuel must be heated to its ignition temperature before it starts burning.  (d)...

Correct Option: A  Internal fertilization occurs inside female body

(i) The blood from the heart is transported to all parts of the body by the arteries. (ii) Haemoglobin is present in red blood cells. (iii) Arteries and veins are joined by...

(i) conductor (ii) chemicals stored (iii) safety device (iv) battery

(a) Joints of the bones help in the movement of the body. (b) A combination of bones and cartilages forms the skeleton of the body. (c) The bones at the elbow are...

(d) : The centre of mass of bodies B and C taken together does not shift as no external force is applied horizontally.

B alone finish work in x days A alone work in x - 5 A one day works= 1/(x-5) and B one day works = 1/x A+B one day work = 1/6 so, 1/(x-5)...

The correct answer is (3) The vertebrates process myogenic heart which is self contractile system or autoexcitable; it will thus keep working outside the body for some time.