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Transcript of Animal Classification
What is classification
Scientist know of more than 1.5 million different kinds of organisms. To organize what they know about so many life forms, scientists have developed a method of classifying (grouping) living things.
There are three Kingdoms of life that are very simple.
Classification as Evolution Evidence
Many species of organisms have similar structures. This is best seen in the kingdom animalia.
Future Discoveries evidence of Evolution
Evidence of evolution is demonstrated through the genetic variation and classification. To organize and easily categorize future organism discoveries, a key was created.
Taxonomy is the branch of life science that names and groups organism.
Kingdoms of Life
Levels of Classification
Some organisms are more alike than others. Scientists classify them by their similarities and differences.
Belong to the kingdom of Eubacteria. Prokaryotic, without nucleus and membrane-bound organelles.
Heterotrophs, cell was that contain a substance called chitin.
Very diverse, most are single-celled.
A body part of different organisms that have a similar structure but not necessarily a similar function.
A body part that have similar function but not a similar structure.
A body part that does not seem to play a role in the body functions of an organism.
The variation of genes from one organism to the next is what provides scientists the evidence of evolution and help placing organisms in the correct Order
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts". Therefore, dichotomous keys always give two choices in each step.
Created By Mrs. T. Clavell
The 6 Kingdoms of Life
Prokaryotic, one-celled, have thick cell walls
Prokaryotic, one-celled, cell wall contains a complex molecule not found in cell walls of other organisms
Eukaryotic, most are one-celled, have no cell wall
Eukaryotic, one-celled or many-celled, have cell walls
Eukaryotic, many-celled, have cell walls
Eukaryotic, many-celled, have no cell walls
Life on Earth
an organism that makes its own food
An organism that gets nutrients from other organisms.