Question

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

Answer 1

Hello. This question is incomplete. The full question is:

""Jonathan Losos and colleagues conducted experiments on small, hurricane-swept islands as "natural laboratories." Which of the following statements is true?

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. - The legs of the anoles placed on the islands became shorter, and their offspring inherited shorter legs. - 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."

Answer:

• 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.

Step-by-step explanation:

Hurricane is a tropical storm (or cyclone) that corresponds to a low pressure system, that is, the pressure in this region is less than that of the areas around it. These areas are unstable and associated with cloud formation, humidity and strong winds.

Hurricanes are meteorological phenomena that can cause enormous destruction wherever they go. After an area is hit by a hurricane, it may go through a process of adaptation and natural selection of many species.

In the case of the question above, in the analysis of Jonathan and his colleagues, they can find the following observations:

• 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.

Answer 2

When hurricane swept an inland, many organisms of the ecosystem will get eliminated from that territory.
This provides the perfect ground for conducting natural laboratories because now he could observe the restarting ecosystem at its earliest forms.
The true statements about the situation are:

-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