a group of organisms that can mate and reproduce fertile offspring
What is species?
100
Who contributed the original research to the Theory of Evolution? Where were his most important discoveries?
Charles Darwin. The Galapagos Islands.
100
Name the 5 characteristics of all living things
Made of CELLS
RESPOND to Environment
REPRODUCE
Use ENERGY
GROW
100
Remains and traces of organisms that lived in the past
What are fossils?
100
Define fossils.
Fossils are remains and traces of organisms that lived in the past.
200
The gradual change of a species
What is evolution?
200
Process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species.
What is natural selection?
200
What is the difference between a unicellular organism and a multicellular organism?
Unicellular - organism made of one cell
Multicellular - organism made of more than one cell
200
What does R.O.C. stand for? Describe each.
-show how different life forms are Related.
-show the Order in which various life forms lived.
-provides Clues about how the earth and the climate have changed
200
Define overproduction and give an example.
More young produced than will survive. Turtles
300
A trait that helps an organism survive and reproduce
What is adaption?
300
This occurs when members of a species become completely cut off from the rest of the species.
What is isolation?
300
Name the difference between a stimulus and response and give an example.
Stimulus - a change in the environment
Response - a reaction to the change
300
Comparing the fossil to other fossils found in the same layer of rock, and comparing the fossil to the age of the rock that was found
What is Relative Dating?
300
What is the difference between adaptions and variations?
Adaptions - changes that help to survive and reproduce in the environment
Variation - differences in traits of the same species
400
Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?
Natural Spelection
400
What are the 2 ways to find the age of a fossil? Define both.
Absolute dating- Finding the actual age of the fossils by comparing the elements found in the fossil to other elements as they break down
Relative dating - Comparing the fossil to other fossils found in the same layer of rock and comparing the fossil to the age of the rock that it was found in. Only works if rock layers are undisturbed.
400
What is the difference between asexual reproduction and sexual reproduction?
Sexual reproduction - 2 parents pass on 1/2 of their DNA to offspring
Asexual reproduction - 1 parent passes a copy of all DNA to offspring. Offspring are identical to the parent.
400
Finding the actual age of the fossil by comparing the elements found in the fossil to other elements as they break down.
What is Absolute dating?
400
Nature chooses helpful variations
Selection
500
Maintaining of stable internal conditions
What is homeostasis?
500
The millions of fossils that scientists have collected are part of the...
Fossil record
500
Define autotroph, heterotroph, and decomposer
Autotroph - Makes its own food
Heterotroph - Eats food
Decomposer - Breaks down dead material
500
How do fossils form?
Fossils form when organisms that die become buried in sediments.
500
What are the four factors that affect natural selection?