A population of lizards were living in an area that began to experience a great amount of mountain building. As the mountains formed some lizards were on one side of the mountains and the rest were on the other side of the mountains. Over a period of many years the lizards were no longer able to breed, or had become different species. Why did this happen? A) The lizards on one side of the mountain were exposed to different conditions and therefore different characteristics were selected. B) The lizards on one side of the mountain were exposed to different conditions and therefore the same characteristics were selected. C) The lizards on one side of the mountain were exposed to identical conditions and therefore different characteristics were selected. D) The lizards on one side of the mountain were exposed to identical conditions and therefore the same characteristics were selected.
Added by Andre C.
Step 1
The lizards were separated by the mountains, so they were exposed to different conditions on each side. Show more…
Show all steps
Your feedback will help us improve your experience
Arun Bana and 98 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Madhur L.
A population of lizards lives on Island A. On nearby Island B, another population of the same species is present. The lizards on Island A have evolved to have a large frill around their necks. The lizards on Island B, on the other hand, have evolved to have a much smaller neck frill. Both islands are colonized by humans and some of the lizards on Island A are transferred to Island B. The lizards from Island A interbreed with the lizards on Island B. The gene coding for the large neck frill is passed on to the offspring resulting from these breedings, introducing new genetic variation into the population. The transfer of genetic information that occurs between the two lizard populations above is known as
A population of lizards lives in a rocky area next to a desert. Some lizards are light-colored and blend into the sand. Others are dark and blend into the rocks. What is likely to happen to this population of lizards over time? a. They may remain one species as a result of directional selection. b. They may remain one species as a result of stabilizing selection. c. They may evolve into two separate species as a result of disruptive selection. d. They may remain one species as a result of disruptive selection. e. They may evolve into two separate species as a result of directional selection.
Emili W.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD