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Give me one example of structural evidence that we looked at last week?
stems, seed structure, leaves
genetic variation needed for a population to evolve (what first brings about these adaptations)
mutations
Many different groups of organisms have wings, even though they do not share a recent common ancestor. This is because they evolved in environments with similar selective pressures. Wings are an example of a(n) ______________ structure.
analogous
A phenotype that improves an organism’s chance of survival in their environment is considered a(n) ____________.
Adaptation
If I wanted to look at DNA to study evolution, I am using what evidence?
Molecular
A laboratory setup that can be used to provide information about relationships between four plant species by separating components of mixtures. This setup is part of the technique known as
Paper chromatography
How do populations change due to genetic drift?
A random event occurs that reduces the population, and the new surviving population has a different allele frequency from the original population.
All of these finches have different shaped beaks, they are an adaptation to gain access of
Food
Several of the Galapagos Islands are inhabited by grasshoppers, beetles, flies, bees, and butterflies. Finches that feed on these consumers would have beaks adapted for
Probing and grasping
Which species is a common ancestor for species B and D?
K
What organism on this diagram would have DNA most similar to the penguin?
Chicken
Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?
Light moths
Structures with no function that are remnants of an organism’s evolutionary past are
Vestigial
Structures with the same parts but have different functions, suggesting that organisms with a backbone share common ancestry is called…
Homologous
The process in which organisms with traits well suited to an environment are more likely to survive and to produce offspring is called
Natural Selection


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