Answered

Discover the answers you need at Westonci.ca, a dynamic Q&A platform where knowledge is shared freely by a community of experts. Get quick and reliable solutions to your questions from knowledgeable professionals on our comprehensive Q&A platform. Discover in-depth answers to your questions from a wide network of professionals on our user-friendly Q&A platform.

The fossil record shows that the average size of black bears was large during cold glacial periods and got smaller during warmer time periods.

What is this an example of?

A. directional selection
B. disruptive selection
C. ecosystem selection
D. stabilizing selection

Sagot :

GinnyAnswer

Final answer:

The fossil record showcasing changes in black bear size based on environmental conditions exemplifies Directional Selection in evolution.


Explanation:

Directional Selection is the concept demonstrated by the fossil record showing the average size of black bears changing based on environmental conditions. This type of selection favors phenotypes at one end of the spectrum, leading to changes in the population's genetic makeup to adapt to new conditions.

For example, during cold glacial periods, larger black bears were favored for survival, while in warmer periods, smaller bears had a better chance of survival. This process showcases how natural selection drives changes in a population based on environmental pressures.


Learn more about Natural Selection here:

https://brainly.com/question/4075522


We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.