the naturally preserved remains, imprints, or traces of organisms that lived long ago.
What are fossils?
100
this type of fossilization occurs when an imprint of a shell or skin of the organism is left behind.
What is a mold?
100
the process by which individuals with traits that better suit the environment are more likely to survive longer and reproduce more successfully than those without these traits.
What is natural selection?
100
the science of the development of embryos from fertilization to birth
What is embryology?
100
Alfred Wegener proposed this theory that the earth's lithosphere is broken into pieces that move.
What is the Theory of Continental Drift?
200
a scientist who studies fossils.
What is a paleontologist?
200
this type of fossilization occurs when an imprint of an orgamism is filled in with sediment and hardens into rock.
What is a cast?
200
the study of similarities and differences in the structure of organisms
What is comparative anatomy?
200
structures that have no function in present day organisms
What are vestigial structures?
200
This can occur if landforms become barriers between populations of species and breeding becomes prohibited.
What is geologic isolation?
300
This type of fossilization occurs when water seeps into the tiny spaces and deposits minerals.
What is permineralization?
300
this type of fossilization occurs when an organism is buried quickly without oxygen and a thin layer of carbon is all that is left.This film forms an image or shape of the original organism.
What is carbonization?
300
parts of organisms that are similar in origin and structure
What are homologous structures?
300
embryos of vertebrate animals develop these structures during embryonic development. In fish these become gills. In human, part of the ear.
What are bulges in the neck called pharyngeal pouches?
300
species evolve independently but under similar conditions.
What is convergent evolution?
400
This type of fossilization occurs when the hard structures dissolve and are replaced with minerals.
What is Replacement?
400
Coal is an exmaple of this type of fossilization.
What is carbonization?
400
structures that appear similar but have different ancestral origins
What are analogous structures?
400
Which is most likely a vestigial structure?
a. an ape's thumb
b. a whale's pelvis
c. a dolphin's flipper
What is b. a whale's pelvis
400
cacti in the Americas and euphorbia in Africa evolved in desert like conditions. This is an example of ?
What is convergent evolution?
500
Petrified wood is an example of this type of fossilization
What is permineralization?
500
a base of all known fossils and their placement in the placement in the formation of rocks and their position in time
What is the fossil record?
500
wings of birds and insects are examples of this type of structure
What are analogous structures?
500
the femur bone in the upper appendages of birds, huamns and frogs is an example of
a. comparative anatomy
b. homologous structures
c. embryology
What is a. comparative anatomy
500
The salamanders of California and Oregon are examples of ?