Question

Read the following statements and choose the
correct option.
(i) Light is essential for life to exist on the earth.
(ii) Many species of small plants under the
canopy to tall trees in forest show optimal
use of available light due to having large
sized antenna and higher number of
thylakoids.
(iii) UV rays are not harmful to many organisms.
(iv) Photoperiodic requirement is essential for
many plants for flowering.
(v) Red algae can live in deeper water of sea
because of having pigment, phycoerythrin.
(a) (i) and (iii) are correct
(b) (i), (iii) and (iv) are correct
(c) only (iii) is correct
(d) (i), (ii), (iv) and (v) are correct

Answer 1

Answer:

d

Explanation:

because UV Ray's that are produced by sun is harmful so living that option all other options are correct

Answer 2

The correct answer is (D).

Explanation:

• It is true that light is necessary for life to exist on the earth.
• The small plants under the canopy to tall trees show optimal use of available light.
• Ultra Violet rays are harmful to the Organisms.
• Photoperiodic movement is required for the plants to flower. It means flower grows towards the sunlight.
• The Eukaryotic algae is Red algae which lives deep inside the Sea.