Natural Selection 1
Natural Selection 2
Evolution 1
Evolution 2
Natural selection and 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
What causes evolution?
Natural selection over generations
100
True or false: evolution happens quickly and can change in one generation
False
100
What does evolution prove?
All species, living and extinct, are related
200
What is an adaptation?
Any inherited characteristic that increases an organisms chance of survival
200
True or false: all living things on earth, alive and extinct, are believed to have come from one organism 3.7 billion years ago.
True
200
The passing of a physical traits of organisms in the same species
What is heredity/genetics
200
what is evolution?
When a population changes over time to better suit their environment
200
True or false: Genetic Variation leads to diversity through random mutation and new allele combination and allows populations to have a greater chance of survival.
True
300
What adaptation do finches have and how does it help them?
Finches have different shaped beaks to let them access the food that is most readily available
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
A part of the body or organ that has a reduced use of function or no use at all.
What is vestigial structures?
300
What is a community?
Different populations of species living in the same environment.
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
What is a population?
Group of the same species living in an environment.
400
What is the evidence for evolution? name two (we learned 5 this unit
Anatomical, Homologous structure, fossil record, Molecular Biology, Vestigial Structure
400
Fill in the blank: Organisms with traits that _____ their chances of surviving and reproducing in their environment tend to leave more offspring
Increase
400
How is Molecular biology evidence of Evolution?
Scienctists see similar DNA, identical genes, and methods of heredity in similar organisms
400
Are mutations random?
Yes
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
Fill in the blank: Natural selection over many generations causes ______
Evolution
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.
500
True or false: Survival of the fittest is which determines which species is the strongest
False