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Geologic Time Scale
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records of the geologic events and the evolution of life forms as shown in the fossil record.
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geologic time period
http://www.enchantedlearning.com/subjects/Geologictime.html
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The period is the basic unit of geological time in which a single type of rock system is formed, lasting tens of millions of years.
(Era divided into periods) |
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preserved remains or traces of living things
pg. 243 |
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information that paleontologists have gathered about past life
pg. 246 |
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the change in living things over time
pg. 247 |
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organism no longer exists and will never again live on Earth
pg. 247 |
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evolutionary relationships
https://study.com/academy/lesson/evolutionary-relationships-definition-diagram-quiz.html
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two organisms that share evolutionary relationship
with a common ancestor on the revolutionary tree
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universal genetic code as proof of evolution from a common ancestor
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Law of Superposition
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Definition
used by geologists to determine the relative ages of sedimentary rock layers
in undisturbed horizontal sedimentary rock layers the oldest layers is at the bottom. Each higher layer is younger than the layers below it. The deeper you go, the older the rocks are. |
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| fossils that help geologists match rock layers. These fossils tell the relative ages of the rock layers in which they occur. pg.251 |
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extinction events
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Definition
at the end of the Permian Period, most species of life on Earth died out.
"mass extinction."
In which many types of living things became extinct at the same time.
* Scientist aren't sure what caused this extinction. Some thing an asteroid struck Earth.
Pg. 270 |
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Term
Natural Selection
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Definition
| is an observable process that is often purported to be the underlying mechanism of un-observable molecules-to-man evolution. |
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| Biology. a taxonomic category of the highest rank, grouping togetherall forms of life having certain fundamental characteristics incommon: in the five-kingdom classification scheme adopted by many biologists, separate kingdoms are assigned to animals (Animalia),plants (Plantae), fungi (Fungi), protozoa and eucaryotic algae(Protista), and bacteria and blue-green algae (Monera). |
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| 1. (Biology) a major taxonomic division of living organisms that contain one or more classes. An example is the phylumArthropoda (insects, crustaceans, arachnids, etc, and myriapods) |
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| Class The phylum group is then divided into even smaller groups, known as classes. The Chordata (vertebrates) phylum splits up into Mammalia (Mammals), Actinopterygii (Bony Fish), Chondrichthyes (Cartilaginous Fish) , Aves (Birds), Amphibia (Amphibians) and Reptilia (Reptiles).[image] |
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| https://a-z-animals.com/reference/animal-classification/ |
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| Each class is divided into small groups again, known as orders. The class Mammalia (Mammals), splits into different groups including Carnivora, Primate, Artiodactyla and Rodentia. |
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| In every order, there are different families of animals which all have very similar features. The Carnivora order breaks into families that include Felidae (Cats), Canidae (Dogs), Ursidae (Bears), and Mustelidae (Weasels). |
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| Every animal family is then divided into small groups known as genus. Each genus contains animals that have very similar features and are closely related. For example, the Felidae (Cat) family contains genus including Felis (small Cats and domestic Cats), Panthera (Tigers, Leopards, Jaguars and Lions) and Puma (Panthers and Cougars). Species |
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| Species Each individual species within the genus is named after it's individual features and characteristics. The names of animals are in Latin so that they can be understood worldwide, and consist of two words. The first word in the name of an animal will be the genus, and the second name indicates the specific species. Example 1 - Tiger Kingdom: Animalia (Animal) Phylum: Chordata (Vertebrate) Class: Mammalia (Mammal) Order: Carnivora (Carnivore) Family: Felidae (Cat) Genus: Panthera Species: Panthera tigris (Tiger) Example 2 - Orang-utan Kingdom: Animalia (Animal) Phylum: Chordata (Vertebrate) Class: Mammalia (Mammal) Order: Primates Family: Hominidae (Great Apes) Genus: Pongo Species: Pongo pygmaeus (Orang-Utan) Share Thi |
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Term
anatomical similarities and differences
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Definition
| The simplest explanation for such similarities is that both species descended from a common ancestor with similar features. This is sometimes verified by the fossil record. |
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| The family tree The process of evolution produces a pattern of relationships between species. As lineages evolve and split and modifications are inherited, their evolutionary paths diverge. This produces a branching pattern of evolutionary relationships. By studying inherited species' characteristics and other historical evidence, we can reconstruct evolutionary relationships and represent them on a "family tree," called a phylogeny. |
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