Question

Multiple choice: Individuals will sometimes produce more descendants than others due to factors such as plumage color, ability to run faster, surviving longer etc... this is called what?

Defining factors

Heritability

Life extension

What is the primary reason that the study of Natural Selection in the field is difficult?

It requires expensive technology

The field is hard to measure because it is so big

In the field evolution usually occurs very slowly

There are no natural habitats left to study

Why would it be adaptive for female turtles to reach such large sizes compared to males?

Female turtles need to defend their eggs

To allow female turtles to carry more eggs

Because female turtles eat different diets than males

Female turtles are not really bigger, they just have larger shells

Differential reproduction

What trait(s) separated the garter snakes in California that survived the drought and subsequent winter from those that did not?

Mass

Snout to vent length

Mass residual

None of the above differences were statistically significant

Answer 1

Ans -1. This is called

Differential reproduction.

Ans- 2. The primary reason that the study of Natural Selection in the field is difficult is

(c)   In the field evolution usually occurs very slowly.

Reason - Evolution due to natural selection is a slow process especially in long-lived organisms so it is difficult to observe and study it directly.

Ans- 3.  It would be adaptive for female turtles to reach such large sizes compared to males

(b) To allow female turtles to carry more eggs.

Ans-4. None of the above differences were statistically significant.