Question

(d) All of these
16. Which mark is necessary on electric appliances?
(a) AGMARK
(b) 151
(c) FICCI
(d) KsKrs,
17. What is the function of WBCS?
(a) Transport of oxygen
(b) Fight against germs
(c) Involved in blood clotting
(d) All of these
18. Blood platelets help in
(a) formation of urine
(b) excretion of urine
(c) sweating
(d) blood clotting
19. The muscular tube through which stored urine is passed out of the body is called
(a) kidney
(b) ureter
(c) urethra
(d) urinary bladder
20. The coil of wire contained in an electric heater is known as
(a) component
(b) element
(c) circuit
(d) spring
PART B
FILL IN THE BLANKS( 4 x 1=4)
1. The rhythmic expansion and contraction of the heart is called.
2. The main excretory product in human beings is.
3.Longer line in the symbol for a cell represents its terminal...
4.Three forms of water are solid,
and​

Answer 1

Answer:

.

Explanation: