How do fossils prove evolution?
The fossils help scientists picture what animals looked like when it was alive.
What’s the fossil record?
It’s made up of all the fossils ever discovered on earth.
What’s mineralization?
When an organism dies, it’s body could be buried under mud, sand, or other sediments in a stream or river.
What’s carbonization?
A fossil forms when a dead animal is compressed over time and pressure.
What’s the difference between molds and casts?
A mold is a impression of a organism in rock and a cast is a fossil copy of an organism in rock.
What’s trace fossil?
Preserved evidence of the activity of an organism.
What’s original material?
The original tissues of an organism can be preserved.
What’s the geologic time scale?
A chart that divides earth history.
What’s a naturalist?
A person who studies plants and animals by observing them.
Who came up with the theory that animals evolve?
Charles Darwin.
What’s variation?
A slight difference between a trait of organisms that help them survive.
What’s natural selection?
Process by which populations of organisms with variations live longer, compete better, and reproduce more than those without variations.
What’s adaption?
A trait that increases an organisms chance of surviving and reproducing in its environment.
What’s structural, behavioral & functional adaptions?
Structural- color, shape, physical.
Behavioral- the way it acts
Functional- internal body systems.
What’s the difference between camouflage and mimicry?
Camouflage- an adaption that can make species blend with there environment.
Mimicry- the resemblance of one species to another.
What’s comparative anatomy?
The study of similarities and differences among structures of species.
What’s homologous structures?
Body parts of organisms that are similar in structure and position but different in function.
What’s analogous structures?
Body parts that perform a similar function but differ in structure.
What’s vestigial structures?
Body parts that have lost there original function through evolution.