Question

Over a period of several decades ecologists conduct an investigation on the survival of a species of lizards

Answer 1

Answer:

To find out the impact of environment on the physical structure of lizard and natural selection.

Explanation:

Ecologists conduct an investigation on the survival of a species of lizards in order to study the impact of environment on the physical body of lizard and natural selection. The ecologists find out that environment has direct impact on the body structure of lizard. Those lizards that spend more time on the ground, have longer legs in order to run fast, while on the other hand, species that lives in the trees usually have shorter legs in order to easily climb on the trees so these body structure helps them in survival and movement.