Vestigial
Structure within an organism that no longer serves a function.
What are embryos?
Early Developmental state of an organism
Which Evidence of Evolution does not guarantee proof of a common ancestor, but instead shows common adaptations between two organisms?
Analogous Structures
What are Fossils?
Preserved Remains of Dead Creatures
Humans and Chimpanzees share 98.8% in DNA. Is this a sign of similarity or difference?
Similarity
Answer Varies
What are gametes?
Reproductive cells that carry half the organisms information.
Are Homologous structures different structures but similar functions or is it Analogous structures?
Analogous
How can something be fossilized?
The buildup of sediment preserved the remains
How does molecular evidence show evidence of evolution.
Shows the DNA similarities in different animals; can reveal that there was a common ancestor
Why do animals develop Vestigial Structures?
Because that structure no longer serves a purpose for the animal.
Difference between Embryos and Fetuses?
Embryo is the earliest stage, Fetuses are the later stage.
Give an example of either an Analogous or Homologous structure.
Analogous: fins on sharks, and penguins
Homologous: Human and horses, cats, bats, whales, birds.
Yes
Does Molecular biology include the study of RNA or solely DNA?
It includes RNA
What kind of structure is a vestigial structure?
Homologous structure.
What is Embryology?
The study of biology that studies the development and formation of gametes, embryos and fetuses
Why are homologous structures evidence of evolutionary relationships.
Homologous structures are evidence of evolution because they show how a basic structural plan from a common ancestor has been modified over time for different uses (e.g., swimming, flying, or walking).
The deeper the fossil,
The older the fossil
How does the number of amino acids show similarities between animals.
The closer the number are, the more similar in DNA and common ancestor.
How do Vestigial structures provide evidence for the evolutionary theory?
They are proof of changes over time reducing the function of a structure of an organism compared to a common ancestor
What do similarities in embryos represent?
They share a common ancestor
What is convergent evolution?
They don't share a common ancestor but evolved similar structures to survive in their specific environment.
What is the geological law of superposition?
Older Layers are under Younger layers.
How does molecular evidence show evidence of evolution?
Shows the DNA similarities in different animals; can reveal that there was a common ancestor