Question

read the text.
some flowering plants adjust their scents to aid in survival. for example, the brassica rapa plant in the turnip family has a floral fragrance that helps the plant attract pollinators. as a consequence, the plant attracts caterpillars that feed on it as well. if a caterpillar infestation occurs, the turnip plant decreases its floral scent using special scent signals in its leaves. a decrease in floral fragrance results in the plant becoming more attractive to parasitic wasps. these wasps kill the caterpillars, helping the plant to survive.
match causes with their effects.
the plant attracts caterpillars. the plant attracts parasitic wasps.
cause effect
the plant has a floral fragrance.
the plant decreases its floral fragrance.

Explanation:

The text states that the plant's floral fragrance attracts pollinators and consequently caterpillars. When caterpillar infestation occurs, the plant decreases its floral scent, which makes it more attractive to parasitic wasps.

Answer:

• Cause: The plant has a floral fragrance → Effect: The plant attracts caterpillars.
• Cause: The plant decreases its floral fragrance → Effect: The plant attracts parasitic wasps.