Log inSign up for FREE
Library

Audio-Lizards Data Nugget

Last updated over 1 year ago
11 questions
1

When differences in traits are related to chances of survival, they are said to be under

1

Brown anole lizards are useful for studies of natural selection because

1

What is a significant force of natural selection (or the selective pressure) on brown anole hatchlings?

1

Why are smaller hatchlings more likely to die?

1

Juvenile anoles that get eaten by predators will not survive and reproduce.

1

Aaron and Robert observed thousands of lizards on the island. What did they predict about the size of lizards and survival?

1

According to the graph, lizards with a body lenght under 22 mm have a survival rate

1

According to the graph, lizards with a body lenght over 26 mm have a survival rate

1

What body lenght has the highest survial rate?

3

Using the concept of natural selection explain why most brown lizards are medium sized.

1

Lizards that are over 32 mm do not survive as well as lizards that are medium sized because the large lizards are easy for predators to see. Lizards that are too small are easily caught. As a result most lizards are medium sized. What type of natural selection is this?