Question

(b) The spores can survive unfavourable conditions due to:

(1)

i) Light weight

ii) Thick wall

iii) Small size

iv) All of the above​

Answer 1

Answer:

ii) thick wall

Explanation:

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Answer 2

Answer:

ii ) Thick Wall

Explanation:

A thick covering known as HETEROCYST is formed by the spores around them to save themselves from the effects of unfavorable conditions.