Lamarck vs Darwin
Mechanisms of Evolution
Patterns of Evolution
Evidence of Evolution
100
Who had the theory of acquired inheritance?
Jean Baptiste Lamarck
100
Which mechanism of evolution leads to adaptations?
Natural Selection
100
What is the difference between convergent and coevolution?
Convergent evolution is when different species develop similar traits.
Coevolution is when different species evolve together in response to each other's adaptations.
100
What are homologous structures?
Structures that are similar in structure but have different functions.
200
Darwin coined the term "descent with modification." What did he mean by this?
the idea that species change over time, give rise to new species, and share a common ancestor
200
Which mechanism of evolution is limited by the mountain?
Gene flow
200
Which pattern of evolution is pictured below?
Divergent evolution/ adaptive radiation
200
What are vestigial structures?
Remnants from an ancestor.
300
True or False. If false, correct to be true. Organisms can change to develop adaptations they need to survive.
False. Populations develop adaptations over time. Organism's cannot develop traits out of need rather they need to be heritable.
300
Which mechanism(s) of evolution lead to antibiotic resistance in bacteria?
mutation and natural selection
300
What can we infer about the size of seeds after drought based on the graph below?
The size of seeds is bigger because the frequency of birds with larger beaks has increased.
300
What are the limitations of the fossil record as evidence for evolution?
Not all organisms will be fossilized. Can create gaps in the record.
400
Which theory of evolution is represented in the picture below? How do you know?
Darwin's theory of natural selection because those that were not fit died and those that were fit survived and reproduced.
400
The population below has had a drastic decrease in genetic variation. Which mechanism of evolution would likely result in a drastic decrease in genetic variation?
Genetic drift
400
Does the fossil record pictured provide evidence of punctuated equilibrium or gradualism?
punctuated equilibrium
400
How does comparative anatomy provide evidence of evolution?
Similarities in body structures can indicate that organisms share a common ancestor
500
Snakes have leg bones although they do not have legs. This is a result of disuse causing that trait to less prevalent in snakes.
Which theory of evolution is being described?
Acquired Inheritance
500
How can non-random mating work against natural selection?
Non-random mating can favor traits that nay make survival more difficult. For example, bright colorful feathers on male peacocks help them attract a mate but also make them more visible to predators.
500
How can the founder effect lead to divergent evolution?
The founder effect isolates the new population from the original. Isolation + natural selection = sepciation.
500
Comparison of amino acid sequences between different organisms can determine relatedness. Why can amino acid sequences be used to determine relatedness between species?
amino acids are coded for by DNA. If there are similarities in the amino acid sequence then there are similarities in the DNA.