Question

Jonathan losos and colleagues conducted experiments on small, hurricane-swept islands as “natural laboratories.” which of the following statements is true?

Answer 1

Since the options are not given, I am giving a general answer.

Jonathan Losos along with his fellow scientists and researchers were studying how the hurricanes were affecting the lives of the different kinds of lizards called the anoles in the Caribbean islands. During his research, he made the following statements - 

1. The islands that are scrubbed by the hurricanes allow the researchers to be introduced to kinds of lizards and it makes it possible to observe their evolution.

2. Many smaller islands had similar environmental conditions which made it possible for the researchers to carry out similar work in different places.

3. Natural selection in these calamity-hit areas gave scope for evolution to the species with rapid changes like changes in the length of the lizard's leg which decreased over the generations.

Answer 2

The legs of the anoles placed on the islands became shorter, and their offspring inherited shorter legs.Natural selection can lead to rapid changes. The average leg length of lizard populations decreased within a few generations.Islands scrubbed by hurricanes allow researchers to introduce new lizard populations and observe their evolution.There are many small islands with similar environments, meaning that researchers can repeat their experiments and observations in several locations.Experiments on the small islands show evidence for adaptation by natural selection but not for evolution