Living Things
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Transcript of Living Things
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Living Things
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What Makes something alive??
Which of the following are alive?
Bacteria
Frog Water
Tree Insect
Baby
Fish
Rock
Mushrooms
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What do all the Things you have identified as living have in common?
MovementRespirationSensitivityFeedingExcretionReproductionGrowth
Remember MRS FERG
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Movement
Movement means the ability of an organism to change positionSome organisms can move the entire body
Some organisms can move part of the body eg plants
Some organisms can move boththeir entire body, and each section of the body eg insects, amphibians, reptiles, mammals
Most organisms move towards things they need and away from things that harm them
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Respiration
Respiration means releasing energy from foodGlucose in the food is broken down inside cells, and
energy is releasedMost organisms use oxygen for this process
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Sensitivity
Sensitivity means the ability of an organism to gather information and respond to it
Some of the things that cause living organisms to respond are light, sound, touch, chemicals, gravity…eg:
Roots grow downwards in response to gravity, shoots grow towards light
Both plants and animals use their sense of touch when climbing
Predators use sound and smell to hunt for prey
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Feeding
Feeding means getting FoodAll living organisms need food for energyPlants can make their own food using energy from
the sun (photosynthesis)Animals need to find an outside source of food
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Excretion
Excretionmeans the removal of toxic chemical substances
toxic substances are poisonous and may harm cells if not removed
examples of toxic substances are carbon dioxide and urea
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Reproduction
Reproduction means producing more organisms of the species
Some organisms reproduce from one parent only – this is called ASEXUAL reproduction
Other organisms reproduce by combining one cell from a male with one cell from a female – this is called SEXUAL reproduction
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Growth
Growth meansthe organism develops into an adultFor micro-organisms, this means their cell grows to
full size before reproducingFor multi-celled organisms, this means that cells
divide, organs grow in size, and systems develop maturity
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2 main groups of living things
1. Plants
2. Animals
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There is a huge variety of Animals
This means that we need to divide the animal kingdom into 2 groups
Vertebrates – Have a backbone
Invertebrates – Have no back bone
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Can you guess the Vertebrates + Invertebrates?
Bone Blaster game SnailAnt DolphinHedgehogCrabFishStarfishBeeSnake
LobsterPlatypusSpiderWormFoxFrogDragonflyBlackbird
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Vertebrates are divided into 5 groups
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Plants
Plants are living organisms fixed in one position and cannot move around they can only moves parts
Plants contain a green chemical called chlorophyll and can make their own food by photosynthesis
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How do you Identify Plants + Animals you don’t know?
A key is a system that gives you a few simple questions at a time and you work through the key by answering questions and eventually identifying organisms
Lets try a few online!And another!Now see if you can use the key on page 3 of
your book