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Phlogenetics, Chp 14 Early Earth (Evolution Big Test)
Cards # 1-6 = Chp 14 Early Earth # 7-14 = 17.2 Phylogenetics 15-17 = google last few cards=practice with cladograms (Phylogenetics)
Terms in this set (21)
Expelled by volcanoes
1. How did the gasses in Earth's early atmosphere get there?
4.6 Billion Years
2. What is the age of the Earth according to Science?
Cyanobacteria have been found in rocks as old as 3.5 billion years and contributed to the oxygen in the atmosphere
3. How did oxygen first enter Earth's atmosphere?
Multiple cells form into one to form an eukaryotic cell
Explain the endosymbiont theory in general terms (how eukaryotic cells evolved from prokaryotic):
1. Mitochondria and chloroplasts contain their own DNA which is circular like prokaryotes
2. The have ribosomes similar to prokaryotes
3. They reproduce by fission like prokaryotes (independent of cells)
5. What is the evidence for the endosymbiont theory?
The evolutionary history of a species
What is a phylogeny?
A molecular clock is
a model used to compare
DNA sequences from 2
different species to
estimate how long
have been evolving
since they diverged
from a common ancestor
What is a molecular clock and how is it used to tell relationships between species?
Is having 4 limbs an ancestral or derived trait?
What is the outgroup?
Salamander, perch, and hagfish
Who does not have claws or nails?
Turtle and leopard
Who has an amniotic egg?
What is the name of this diagram?
Would wings be a biochemical or morphological character?
Would DNA sequences be a biochemical or morphological character?
When an organism walks on two feet
What is bipedalism?
Radiometric dating is a method used to date rocks and other objects based on the known decay rate of radioactive isotopes. Different methods of radiometric dating can be used to estimate the age of a variety of natural and even man-made materials
6. How does radiometric dating work (in general) and what is it used for?
How does mitochondrial DNA support the Out of Africa theory? Get answer from this article excert.
What does this organism lack (not have)?
Jaws, four walking legs, amniotic egg, and hair
What organism has hair?
What character does this organism have?
Who is the most distantly related to this organism?
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