Chapter 2: Chapter 2: Classification Do Now Classification Do Now Shoes activity: Classify the collection of shoes for your group. Create at least three major categories. Consider using subcategories as necessary.
Dec 29, 2015
Chapter 2: Classification Do Chapter 2: Classification Do NowNowShoes activity:
Classify the collection of shoes for your group.
Create at least three major categories. Consider using subcategories as necessary.
Chapter 2: ClassificationChapter 2: Classification
Taxonomy = the study of how living things are classified. Species are classified based on shared characteristics.
Chapter 2: ClassificationChapter 2: Classification
The more shared characteristics between two species, the more closely matched the names.
EukaryaAnimaliaChordataAvesStrigiformesStrigidaeBubovirginianus
EukaryaAnimaliaChordataAvesStrigiformesStrigidaeBubomagellanicus
= Magellan horned owl= great horned owl
Chapter 2: ClassificationChapter 2: Classification
The more shared characteristics between two species, the more closely matched the names.
EukaryaAnimaliaChordataAvesStrigiformesStrigidaeBubovirginianus
EukaryaAnimaliaChordataAvesStrigiformesStrigidaeBubomagellanicus
= Magellan horned owl= great horned owl
EukaryaAnimaliaChordataMammaliaCarnivoraFelidaeFelissilvestris
= cat
Chapter 2: ClassificationChapter 2: Classification
Eukarya = domain for creatures with cells that contain nuclei.
Four kingdoms within Eukarya = Protists (seaweed), Fungi (yeast, mushrooms), Plants (tomatoes, redwoods), and Animals (cats, humans).
Chapter 2: CellsChapter 2: Cells
Eukarya = domain for creatures with cells that contain nuclei.
Cells are the basic units of structure and function in living things.
Functions may include: obtaining oxygen, removing waste, growing and obtaining food.
Chapter 2: CellsChapter 2: Cells
Cell Theory- Could not have been developed
without microscopes to view living things at the cellular level.
- Robert Hooke looked at cork cells in 1663 using his compound microscope and called the empty spaces “cells” which means “small rooms” (i.e. jail “cells”)
Chapter 2: CellsChapter 2: Cells
Cell Theory- Around 1674, Anton van
Leeuwenhoek used a simple microscope (one lens) and saw many single-celled organisms swimming around water samples and called them “animalcules” (little animals).
Chapter 2: CellsChapter 2: Cells
Cell Theory- Developed by Schleiden (plants =
cells), Schwann (animals = cells) and Virchow (cells only come from cells)
- All living things are composed of cells- Cells are the basic units of structure
and function in living things.- All cells are produced from other
cells.
Chapter 2: CellsChapter 2: Cells
Microscopes and cells- Simple microscopes = one convex
lens to magnify something- Compound microscopes use two
lenses to magnify something- Electron microscopes, developed in
the 1930’s, use electrons to magnify images at much higher resolutions than compound microscopes