OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
A student observes black circular patches on rose leaves. The weather was warm and humid for two weeks prior to the appearance of the black patches. What is the most likely reason the leaves developed the black patches?
|
|
inheritance of traits from parents
|
|
|
growth of rose plants in excess sunlight
|
|
|
presence of fungal spores on leaves
|
|
|
presence of caterpillars on leaves
|
Explanation:
Detailed explanation-1: -Like most fungal illnesses, black spot flourishes in moist conditions. What is this? You may notice the black spots produce spores that get carried away by the wind to other foliage or plants, so that other rose bushes also get infected by this as the spores spread.
Detailed explanation-2: -If left unchecked, black spots can cause yellowing, premature leaf drop, and eventually the death of the plant. Other rose bush diseases include powdery mildew, canker, and rust.
There is 1 question to complete.