Evolution
Name one form of evidence of evolution?
Fossils, Geographic Distribution, Continental Drift Theory, Plate Tectonics, Homologies, Analogous Structures, Vestigial Structures.
What is the definition of natural selection?
Nature selects the "best suited" traits, charachteristics and adaptations to pass on to the next generation through reproduction. Over time the best suited traits accumulate in the population!
A body or body part is this type of adaptation?
Structural or physical
Fossils are evidence of evolution. Why?
Fossils show us species have lived and becone extinct over time on the Earth. This shows us that evolution happens new species evolve and other may go extinct. Still others may change from one species into another over long, long periods of time
Name two large land masses that existed on the Earth millions and billions of years ago?
Rodina
Pangea
This is the process by which evolution works?
Natural Selection
Who came up with the idea of natural selection?
C. Darwin and A. Wallace
An action observed in an organism can be said to be a result of this type of adaptation?
Behavioral
Why is embryology evidence of evolution?
Embryos of early animals are very similar early on in their development. For example, all appear to have gill slits. This suggest a Common Ancestor.
When did the supercontinent of Pangea exist? How many million years ago?
About 300 million years ago or 300 mya
What are the two definitions of evolution?
Species gradually changing into a new species over a long, long period of geologic time.
Species gradually changing as they adapt to an ever changing environment.
South America and Malaysia
Blood, DNA, tears, gas, and metabolism inside the body can be said to be this type of adapation?
Physiological
Why is continential drift evidence of evolution?
When comparing identical fossils of plants and animals around the world scientists observe that the Earth's land must have been connected at one time (Pangea). The land spread apart forming the continents we have today separating and isolating populations of the same species.
True or False Geographic Barriers isolate populations of various species
True
What did Alfred Weagner contribute to our understanding of evolution?
Continental Drift Theory and Geographic Distribution
What does similar species arise out of similar species?
All species appear to come from a common ancestor and as a result like species change form into new species in a given geographical area.
Name the three types of symbiosis?
Mutualism
Commensalism
Parsitism
Who came up with the theory of contiential drift?
Alfred Weagner
Name three different vestigal structures that humans have?
wisdom teeth
gall bladder
goosebumps
What are three "things" that must exist in a population for evolution to occur?
1. Reproduction
2. Variation - Differences between individuals
3. Natural Selection - Selecting beneficial traits
Darwin came up with the idea of natural selection. So did Wallace. What else did Darwin contribute to the study of evolution?
Darwin explained a family tree for a Genus of similar organisms originating with a common ancestor.
Common Ancestor Theory
Give three examples of adaptations we discussed in class. The adapations are structural, behavioral, and physiological.
Body arms and legs
Walking or running
Anger, heart beating, DNA, breathing
DNA is the building block of ____________?
Life
Name five parts of the human hand and arm using their scientific names.
Ulna, Radius, Carpals, Metacarpals, Humerous, Phalanges