Question

what is adaptive radiation? when many diverse species arise from a common ancestor when individuals with the lowest fitness reproduce when a species cannot find food

Explanation:

Adaptive radiation is a biological concept. It refers to the process where a single ancestral species evolves into many diverse species. These new species adapt to different ecological niches. The option "when many diverse species arise from a common ancestor" aligns with this definition. The other options are incorrect. "When individuals with the LOWEST fitness reproduce" is not related to adaptive radiation. "When a species cannot find food" is about survival challenges, not adaptive radiation.

Answer:

when many diverse species arise from a common ancestor