Question

Mark "T" if the statement is true and "F" if it is false:
(i) During heavy exercise the breathing rate of a person slows down. (T/F)
(ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F)
(iii) Frogs breathe through their skins as well as their lungs. (T/F)
(iv) The fishes have lungs for respiration. (T/F)
(v) The size of the chest cavity increases during inhalation. (T/F)
NCERT Solutions for Class 7th Science Chapter 10 Respiration in Organisms Page 119 Exercise Question 7

Answer 1

i)    false
ii)   false
iii)  true
iv)  false
v)  true

Answer 2

Answer:

(i) F  (ii) F  (iii) T  (iv) F   (v)T.