Types of Evidence
This type of evidence is from remains or traces of life, which gives us an idea of what life looked like in the past.
Fossil Evidence
Where can the oldest fossils be found in layers of rock?
An evolutionary tree that compares organisms and includes a timeline is called a...
Phylogenetic Tree
What is the definition of a species?
A group of organisms that can interbreed.
In a phylogenetic tree, humans and chimpanzees are connected by an organism in the past. This organism is their ___________
Common Ancestor
Comparative embryology, which compares embryos of various species, have revealed that vertebrate animals share a _____________ with each other.
Common Ancestor
When comparing DNA sequences, the organisms with the (most/least) differences are the most related.
Least
Organisms that are at the end of the timeline are considered ____________.
Alive (Extant)
A group of deer are suddenly separated by a flood. Over time, the two subgroups of deer evolve into different species. What type of speciation does this represent?
Allopatric Speciation
What was your favorite part of this year's Biology Class?
Any appropriate answer.
Comparative Anatomy, which compares body structures, have revealed ___________ structures, which once served a function, but no longer do.
Vestigial
Homologous
Organisms on a line that ends before the timeline ends are considered...
Extinct (Died out)
A group of birds live in the forest. Some of them start to become active at night, while others stay active during the day. Over time, they evolve into two different species. What type of speciation is this?
Sympatric Speciation
Homologous structures are a result of which type of speciation?
Divergence
Comparative Anatomy, which compares body structures, have revealed ___________ structures, which have different functions but the same evolutionary origin.
Homologous
Whale flippers contain finger bones. These are examples of _____________ structures.
Vestigial
An organism that is in the middle of a line, representing a form that changed over time rather than dying out, is considered a...
Transitional Species
When similar species become more different over time, we call this ___________. When different species become more similar over time, we call this _________. (Need both words)
Divergence / Convergence
Analogous Structures are the result of which type of speciation?
Convergence
Comparative ____________ is the most universal type of physical evidence, in which we compare __________ of various species. (Need both words)
Biochemistry / Molecules (DNA and protein)
Whale flippers contain different bone structures to shark fins. These are ____________ structures.
Analogous
How is a cladogram different from a phylogenetic tree?
It does not have a timeline / It only looks at physical traits
Darwin's Finches all evolved very rapidly into a dozen different species around the same time. This type of speciation is called...
Adaptive Radiation
What were the four types of physical evidence of evolution that we learned this year?
Fossils, Comparative Embryology, Comparative Anatomy, Comparative Biochemistry