biologic evolution: unity and diversity Flashcards
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fossil
Remains or traces of plants and animals that lived a long time ago.
Extinct
A living thing that is no longer alive anywhere today.
paleontologist
A scientist that studies fossils.
Herbivore
An animal that eats plants.
carnivore
An animal that eats meat.
Omnivore
an animal that eats both plants and meat.
Organisms
any living thing
mold
a hollow fossil form clearly showing the outside features of the organism.
cast
formed or shaped within the mold.
imprint
a fossil created by a print or impression
amber
hardened tree sap ,m often a source of inset fossil.
trace fossils
Studying trace fossils, we can learn about how animals lived
true form fossils
an actual preserved body of an animal
environmental conditions
A change or disturbance of the environment
erosion
the process of taking away rocks
weathering
a natural process that slowly breaks apart rocks
gravity
an invisible force that pulls objects toward each other.
