Natural Selection #1
Natural Selection #2
Evidence of Evolution
Evolution in General
Beaks of Finches
100
Term that means to have a variety of traits in a population
Variation
100
Each species produces more offspring than will survive
what is overproduction?
100
Traces of organisms left behind in rocks and amber
What is a fossil
100
Proposed the theory of evolution by natural selection
Who was Charles Darwin
100
Islands that Darwin visited
What is Galapagos
200
Three sources of variation
Mutations, meiosis and fertilization/ sexual reproduction
200
Evolutions occurs due to a constantly ________ environment
what is: changing?
200
Whale ancestors having back legs suggests what?
They lived on land
200
The collection of all preserved organisms that scientists can compare with
What is the fossil record
200
How could an island support both a large population of small and large ground finches?
(look at finch wheel)
by having both small seeds (for the small finch) and large seeds (for the large finch available)
300
A characteristic that helps an organism survive
What are Adaptions/favorable or advantageous traits
300
One required condition of natural selection is that organisms must "fight" to get resources they need such as food, water, mates, etc.
what is: competition
300
These are homologous structures. Similarities in these limbs suggest...
Organisms have a common ancestor
(and adapted to different environments)
300
What do phylogenic trees show?
evolutionary relationships between species/ common ancestors
300
What condition necessary for natural selection to take place was represented by the different tools in the lab representing beaks?
What is Variation
400
What does an organism's fitness mean?
The ability to survive and reproduce
400
Species that have a wide variety of traits, what is most likely to happen to this species?
What is survive and reproduce
400
Study of organisms in their earliest stages of development. Lots of organisms look the same in this stage
What is comparative embryology
400
When antibiotics are overused, what happens to the bacteria population?
What is select for resistant organisms?
400
How was competition represented in the NYS Beaks of Finches lab?
By having 2 or more different "birds" or "beaks" eating seeds out of the same bowl at the same time
500
What is natural selection?
The process where the organisms that are best adapted to a specific environment survive and produce more offspring than organisms that are not
as well adapted
500
Explain one specific example of natural selection that we discussed or used as an example in class
Peppered Moths, giraffe necks, Galapagos finches, Galapagos tortoises, whales and hippos,
500
Name one piece of molecular evidence we can use to see if organisms share a common ancestor
DNA, amino acids
500
Structures that have no current function
What is Vestigial
500
What was the environmental factor/pressure that caused the finches in the Galapagos Islands to develop different beak shapes?
Food