1 classification. 2 mrs c gren living organisms are able to perform all of mrs c gren and non living...
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Classification
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MRS C GRENLiving organisms are able to
perform all of MRS C GREN and non living cannot.
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MRSCGREN
= movement= reproduction= sensing= circulation= growth= respiration= excretion= nutrition
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Movement is action carried out by a living organism e.g. a flower opening or a horse walking
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Reproduction is the ability of living organisms to make offspring which are similar to the parents
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Sensing is the detection and response to changes in the environment
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Circulation is the movement of substances (food, gases, waste) within an organism
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Growth is change in an organism over time
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Respiration is the use of energy from food molecules
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Excretion is the removal of waste produced by the organism
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Nutrition is making or getting food inside an organism
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Differences between
plants and animals
• Animals- Are usually mobile and able to
move limbs quickly- Obtain energy by eating other
organisms
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• Have a nervous system and brain
• Have well developed sense organs
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• Plants- Usually fixed or
floating, can move some parts slowly
- Make their own food using light
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• Have no nervous system or brain
• Have no special sense organs
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Grouping living thingsThere are trillions of living
organisms on Earth.
They are sorted into smaller groups called species. The organisms in a species have common structures and behaviours and can breed together to make fertile offspring.
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• Dogs of different breeds look very different but they can all mate and produce fertile puppies. All dogs belong to one species.
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• Horses and donkeys look and behave similarly and they can mate to produce offspring called mules. Mules are infertile therefore horses and donkeys are different species.
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So far scientists have identified about two million species. This is still a large number so closely related species are grouped into a genus.
Similar genera are grouped into a family.
Similar families are grouped into an order.
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Similar orders are grouped into a class.
Similar classes are grouped into a phylum.
And similar phyla are grouped into kingdoms.
There are five living kingdoms.
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The Five Living Kingdoms
Plants
Animals
FungiMonera
Protista
All livingorganisms
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The Five Living Kingdoms
• Animal Kingdom
• Plant Kingdom
• Fungi Kingdom
• Protista Kingdom
• Monera Kingdom
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Animal Kingdom
• Multicellular with a nucleus
• Moving bodies and parts
• Eat other organisms for food
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Animal Kingdom
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Plant Kingdom
• Multicellular with a nucleus
• Immobile but have moving parts
• Make their own food
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Fungi Kingdom• Multicellular
with a nucleus
• Immobile
• Eat other organisms for food (external digestion)
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Protista Kingdom• Single celled
organisms with a nucleus
• Mobile
• Some eat other cells
• Some make own food (algae)
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Monera Kingdom (Bacteria)
• Single celled with no nucleus
• Some are mobile
• Have a range of different feeding methods
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Binomial naming system
Every species is given a unique species name to avoid confusion. This name has two parts and is given in Latin.
For example, pine trees are named Pinus radiata and people are called Homo sapiens
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Find out the common name of these NZ organisms
• Diomeda epomophora = Royal Albatross
• Agathis australis = Kauri
• Ninox novaeseelandiae = Morepork
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Find out the common name of these NZ organisms
• Cordyline australis = Cabbage Tree (Ti Kouka)
• Podocarpus totara = Totara
• Apteryx australis = Brown Kiwi
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Dichotomous keyKeys are used to identify
unknown objects or put them into groups.
A dichotomous key has a series of questions which have two alternative answers.
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They can take up a lot of room!
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A dichotomous key to identify a duck, a hen, a lizard and a snake
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Classifying animals
All animals
Animals with backbones
Animals without backbones
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Write the group to which each animal belongs.
Sample Dichotomous KeyI. Body covering A. not covered with hair or feathers - go to II B. covered with hair or feathers - go to IIIII. Skin Texture A. smooth - Amphibian B. scaly - ReptileIII. Skin Features A. covered with feathers - Aves B. covered with hair - Mammal
Mammal Amphibian Reptile Aves
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Construct a dichotomous key
Construct your own dichotomous key to classify the contents of your pencil
case.
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Dichotomous key for stationery1a. Item made of at least some metal???????.go to 2
1b. Item does not contain any metal??...............??go to 6
2a. Item used as writing instrument?????..??go to 32b. Item not used as writing instrument????...?..go to 4
3a. Item writes with ink?????...............????ballpoint pen
3b. Item writes with carbon?????..?...............?pencil
4a. Item has sharp cutting edge?????...............?scissors4b. Item does not have a sharp, cutting edge?..............go to 5
5a. Item has a sharp, pointed end???............???thumb tack
5b. Item does not have a sharp, pointed end??.....?..paper clip
6a. Item is hard?????..........????????.go to 76b. Item is not hard ?????..........??????..rubber band
7a. Item is numbered in equal divisions???.....??ruler
7b. Item not numbered in equal divisions??..........?go to 8
8a. Item can write on paper????..............???..pencil8b. Item can't write on paper???........................?..go to 9
9a. Item has a sticky, central core?????....??..glue stick
9b. Item does not have a sticky, central core?.......?..eraser