Factors responsible for the rapid spread of bread mould on slices of bread are
(i) large number of spores
(ii) availability of moisture and nutrients in bread
(iii) presence of tubular branched hyphae
(iv) formation of round shaped sporangia
(a) (i) and (iii)
(b) (ii) and iv)
(c) (i) and (ii)
(d) (iii) and (iv)
Answer: The correct answer is (c) (i) and (ii)
Solution: The factors responsible for the rapid spread of bread mould on slices of bread are the availability of moisture and nutrients in bread and the formation of round-shaped sporangia. The fungi spread rapidly through spores by sexual or asexual methods. The spores germinate under favourable conditions and produce new hyphae. Hence, (c) is the correct option.