Identification, Variation, & Adaptation

Big Ideas

8 Major Categories of Classification• Species is the most specific

DearKingPhillipCameOverForGoodSoup

Domain

6th Grade Review• All living things are classified into

taxonomic groups: the largest and broadest umbrella is the domain

• The 3 Domains for the Taxonomic Classification of Living Things are as follows: – Bacteria– Archaea – Eukaryota

• Characteristics are used to classify organisms into kingdoms– Type of cell (prokaryotic or eukaryotic)– Number of cells (unicellular or multicellular)– Food source (autotrophic or heterotrophic)– Mode of reproduction (sexual or asexual)

• There are currently 6 kingdoms –The 6 Kingdoms of living things are as follows:Archaebacteria Eubacteria Fungi Protists Plants Animals

6th Grade Review

Most Asexual,some Sexual

ArcheabacteriaEubacteria

Need to KnowDecomposers,

some cause disease

extreme environments,

old bacteria

Tiny organisms, cannot be

classified as fungi, plants, or animals

(leftovers)

mushrooms, molds, and

mildew

Do not move from place to place on their

own

Most can move for at least part of

their lives

Prokaryotic• Pro means NO• No nucleus

Eukaryotic• Has a nucleus• You have a nucleus

and are Eukaryotic

vs.

Unicellular• 1-celled organism

Multicellular• Organisms with

more than 1 cell

vs.

Autotrophs• Make their own energy

(food) through photosynthesis

Heterotrophs• Eat other organisms

to get energy

vs.

Asexual Reproduction

• 1 parent• Uniform offspring

Sexual Reproduction• 2 parents• Diverse offspring

vs.

Taxonomic Classification• BrainPop – – Classification only First 1:35– Six Kingdoms

• List the 3 currently recognized domains?– Bacteria– Archaea– Eukarya

• List the 6 currently recognized kingdoms?– Bacteria– Archaea– Protist– Fungi– Plant– Animal

Taxonomy Classification• Taxonomy – the science of classifying (naming) organisms• Binomial Nomenclature

– developed by Carolus Linnaeus– 2-word naming system (genus and species)

• Examples:– Felis concolor (mountain lion)– Ursus arctos (brown bear)– Homo sapiens (humans)– Panthera leo (lion)– Panthera tigris (tiger)

• Recognize and properly write a scientific name: Homo sapiens, or Homo sapiens, or H. sapiens – 1st word is Capitalized –Genus– 2nd word is lowercase —species– Underline– Italicize– Abbreviate the genus (first name) (P. tigris or P. leo)

1A If the edge of the leaf has no teeth, waves, or lobes

Go to 2

1B If the edge of the leaf has teeth, waves, or lobes

Go to 3

2A If the leaf has a single bristle at its tip

Shingle Oak

2B If the leaf has no single bristle at its tip

Go to 4

3A If the leaf edge is toothed Lombardy Poplar3B If the leaf edge has waves or

lobesGo to 5

4A If the leaf is a heart-shaped leaf with veins branching from the base

Redbud

4B If the leaf is not heart shaped Live Oak5A If the leaf edge has lobes English Oak5B If the leaf edge has waves Chestnut Oak

Adaptations• Explain how each adaptation is used by an organism

to enhance its survival…• Hollow bones• Dense bones• Xylem• Plant storage bulb• Pholem• Gills• Lungs• Migration• Hibernation

Natural Selectionvs.

Selective BreedingView BrainPop Natural Selection

through 2:48

Natural Selection• Changes in genetic traits that occur over

many generations due to environmental factors for survival or reproduction–Temperature, rainfall, predator-prey,

attracting mates

Natural Selection• Galapagos Medium Ground Finch• Now several species of finch because the variety of

food sources found in different areas

• Peppered Moths

• During the Industrial Revolution trees were covered with soot from smoke

Natural Selection ….the result

• the process of HUMANS choosing specific plants or animals to breed for desirable genetic traits

• Domesticated animals• Crops

Selective Breeding

• Domesticated animals are bred for….• Mild temper• Color• Speed

Selective Breeding

Selective Breeding• Farm animals are bred for…• Lay most eggs• More meat• Produce more milk• Mild temper• No horns• Strength

• Plants such as fruits, vegetables, and garden flowers are bred for…

• To produce more crop• To produce bigger crop• Resistant to pests and diseases• Drought-resistant

Selective Breeding

Selective Breeding or Natural Selection …you decide

Cabbage Varieties Leafy Sea Dragon

Selective Breeding or Natural Selection …you decide

Cabbage Varieties Leafy Sea Dragon

NATURAL SELECTION

SELECTIVEBREEDING

Selective Breeding or Natural Selection …you decide

Bengal CatTesonite (Corn)

Selective Breeding or Natural Selection …you decide

Bengal Cat Tesonite (Corn)

SELECTIVEBREEDING

SELECTIVEBREEDING

Selective Breeding or Natural Selection …you decide

Liger Puggle

Selective Breeding or Natural Selection …you decide

Liger Puggle

SELECTIVEBREEDING

SELECTIVEBREEDING

Selective Breeding or Natural Selection …you decide

Eyes that rotate in all directions

zebra

Selective Breeding or Natural Selection …you decide

Eyes that rotate in all directions

zebra

NATURAL SELECTION

NATURAL SELECTION

Extra Time

• BrainPops– Gills– Hibernation– Migration– Camouflage