Question

No 2. Write True of False :-
D) Oxygen(in air) is essential for combustion.
ii) Red Data Book keeps a record of all the endangered animals
and Plants.
ii) The basic living Unit of an Organism is an organ.
iy) External fertilisation takes place in frog.
v) Thyroid gland secretions the thyroxine hormone.​

Answer 1

Answer:

1.true

2. true

3. false

4. true

5. true