105k views
17 votes
Which of the following IS an example of natural selection causing evolution?

A. A volcano erupts and the cooling lava turns the white sands black, the local population of mice are now preyed upon easier if they have lighter fur leaving the dark furred mice alive to reproduce more dark furred mice.


B. A giraffe struggles and stretches to reach the leaves on the tallest branches, eventually lengthening its neck. When it reproduces, its offspring has a long neck as well.


C. A man mows his yard once a week, this keeps the normally long grass short over a greater period of time.


D. Dog breeders only allow the smallest dogs in a litter to reproduce eventually creating miniature varieties of the breed.

User Dania
by
4.5k points

2 Answers

7 votes

Answer:

A

Step-by-step explanation:

Think about it. if it is easier for light mice to be preyed upon, then they will die out quicker, causing the dark mice to become the majority giving them an opportunity to produce more dark offspring. The light mice will eventually die of as they are easier to catch and kill thus creating a larger population of dark mice becuase they survive better naturally.

User Gordon Yorke
by
4.1k points
6 votes

Answer:

B

Step-by-step explanation:

The definition is that orginisms adapt to their enviroment to survive and breed. This answer fits that definition

User GMichael
by
4.5k points