LEQ
What are environmental factors?
External environment
**DOUBLE POINTS** Give an example of an environmental factor
What is the process by which modern organisms have descended from ancient organisms
Evolution
Preserved remains or traces of any organism from the past that is made out of rock is known as a
Fossil
True or False: Species that have become extinct can live again on Earth
False
Once a species becomes extinct, the species was unable to produce and their genes were not passed down to another generation
Who was the scientist that developed the theory of Evolution?
Charles Darwin
**DOUBLE POINTS** Could the Theory of Evolution change if new evidence was discovered?
Give an example of an Adaptation
**TRIPLE POINTS** Explain how this adaptation helps an organism survive
Camouflage - Blending in with the environment to avoid predators
Hibernation - A long sleep to survive harsh cold winters
Migration - Organisms move from one habitat to another in order to find better food, weather, conditions
Mimicry - Organisms copy the appearance of other organisms in order to avoid predators
Dormancy - Organisms shut down to survive harsh winter conditions
Define Adaptation
An organisms ability to ‘adapt’ or change in order to survive
**DOUBLE POINTS** What is an example of an adaptation
What was significant about the fossils that Charles Darwin found in the mountains?
The seashell fossils found in the mountains suggested that the mountains were once beaches.
Earth and its landscape change over time
Natural selection states that individuals that are better adapted to their environment are (more or less) likely to survive and reproduce
More
If an organism is able to survive, then they will be able to reproduce
**DOUBLE POINTS** What is another way to say "natural selection"?
Which characteristic of evolution involves the differences in species, including mutations?
Genetic Variation
What is Evolution?
process of how modern organisms came from ancient ones
Change over time
Define Genetic Variation
Any difference between individuals of the same species
**DOUBLE POINTS** Give an example of a genetic variation?
True or false: The fossil record provides details about how organisms of the past evolved into the forms we see today
True
What would happen if an organism is unable to adapt to survive in their environment
The organism would die
**DOUBLE POINTS** What is it called when a species completely dies off and can no longer reproduce in its environment?
What are some examples of environmental factors?
Weather, climate, temperature, food, water
What is Extinction?
Complete death of a species
Any change to genetic material (or a mutated gene) is known as:
Mutation
According to the Law of Superposition... the deeper you find a fossil, the (older/younger) the fossil is
Older
If an organism dies before it could reproduce, could their genes get passed onto the next generation?
No!
Organisms need to survive in order to reproduce and pass their genes onto offspring (babies)
**DOUBLE POINTS** What is it called when a species completely dies off and therefore are unable to live on earth again?
True or False: Evolution can lead to new species
True!
What is Natural Selection?
Organisms best adapted to their environment are more likely to survive and reproduce
Which vocabulary word means: "survival of the fittest"?
Natural Selection
Structures in different species that are similar because of common ancestry are known as
Homologous structures
What do species need to do in order to survive in a changing environment?
Adapt
Adaptation is the process of organisms changing in order to survive
What is a Homologous Structure?
Structures in different species that are similar because of common ancestry are known as