Natural Selection
Natural Selection
Evolution
Evolution
100
What is natural selection?
Species that are best adapted to their environment are able to reproduce
100
Fill in the blank: survival of the _____
Fittest
100
Where did Charles Darwin conduct most of his studies?
Galapagos Islands
100
True or false: evolution happens quickly and can change in one generation
False
200
What is an adaptation?
Any trait that increases an organisms chance of survival in their environment
200
What is the evidence for evolution? name two
Comparative anatomy, fossil record, embryology and development and DNA comparison
200
What did Charles Darwin discover?
Natural selection via different characteristics in the beaks of finches
200
what is evolution?
When a population changes over time to better suit their environment
300
What adaptation do tigers have and how does it help them?
Tigers are orange in color. Their prey (chitals) cannot see the color orange, helping tigers blend in and sneak up on them.
300
Explain which mouse is better adapted to this environment.
The grey mouse is better adapted to this environment. Its fur color blends in with the environment and therefore is not seen by predators.
300
Fill in the blank: Organisms with traits that _____ their chances of surviving and reproducing in their environment tend to have more offspring
Increase
300
In an arctic habitat; are white foxes or grey foxes more likely to survive and why?
White foxes are more likely to survive becase their white coats help them blend into the snow
400
In the 1900s, when there was soot intoxicating the air, what color moth was most common because of natural selection?
Black
400
True or false: all living things on earth, alive and extinct, came from the first species on Earth
True
400
Fill in the blank: Natural selection over many generations causes ______
Evolution
400
How is embryology proof of evolution?
Many organisms of different species look similar during early stages of development.
500
In an environment with food that grows on trees; are animals with long legs more likely to survive than animals with short legs and why?
Yes, animals with long legs, necks or any trait that makes them taller will be more likely to survive because they have easier access to food.
500
True or false : populations evolve, not individuals.
True
500
Explain how the Chernobyl frogs shows a modern day example of natural selection.
When the explosion happened, the amount of radiation in the Chernobyl environment increased. Frogs with darker coloration were more resistant to the radiation, therefore surviving and reproducing. Darker frogs became more common
500
How does natural selection of this population cause evolution?
The environment chooses the gray mouse trait to be more advantageous in this population. Over time, this population will change because the gray mouse trait will become more common than the tan mouse trait.