Evolution Test Prep Flashcards
What are 4 transitional fossils?
Archaeopteryx, Pezosiren, Pakicetus, and Tiktaalik
What two does the Tiktaalik connect?
Land animals to fish
What two does the Pakicetus connect?
Land animals to whales
What two does the Pezosiren connect?
Land to sea animals
What two does the Archaeopteryx connect?
Dinosaurs to birds
What animal does the Archaeopteryx relate to? Where is it found?
- Birds
- Germany
What animal does the Pezosiren relate to? Where is it found?
- Manatees and dungongs
- Jamaica
What animal does the Pakicetus relate to? Where is it found?
- Whale and dolphin
- Pakistan
What animal does the Tiktaalik relate to? Where is it found?
- Fish
- Canadian Arctic
What are the Tiktaalik adaptations?
Movable neck, sturdy ribcage, crocodile-like head, gills, scales, fins
What are the Pakicetus adaptations?
Teeth, wolf-sized, long snout, four legs, capable of moving on land
What are the Pezosiren adaptations?
Teeth, semi-aquatic, strong legs, pelvic structure
What are the Archaeopteryx adaptations?
Feathers, wings, wishbone, long tail, claws, teeth, size of a crow
English naturalist
Charles Darwin
A group of small organisms that can breed and reproduce
Species
A trait that helps an organism survive and reproduce
Adaptation
The gradual change in a species over time
Evolution
What layer of rock are the fossils mostly found in?
Sedimentary rock
The fossil record shows when organisms developed on Earth and why they went extinct.
Yes
A natural process resulting in the evolution of organisms best adapted to the environment
Natural Selection
Organisms that produce more offspring than can survive
Overproduction
The struggle between organisms to survive in a habitat with limited resources
Competition
Difference between animals in the same species
Variation
What are the evidences for evolution?
Similar bone structure, DNA, embryos, and fossil record
