Living Things

What Makes something alive?? Which of the following are alive? Fish Bacteria Tree Insect Rock Baby Frog Water Mushrooms

What do all the Things you have identified as living have in common? Movement Respiration Sensitivity Feeding Excretion Reproduction Growth Remember MRS FERG

Movement Movement means the ability of an organism to change position Some organisms can move the entire body Some organisms can move part of the body eg plants Some organisms can move both their 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

cell glucose oxygen Respiration carbon dioxide water energy Respiration means releasing energy from food Glucose in the food is broken down inside cells, and energy is released Most organisms use oxygen for this process cell glucose oxygen energy water carbon dioxide

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

Feeding Feeding means getting Food All living organisms need food for energy Plants can make their own food using energy from the sun (photosynthesis) Animals need to find an outside source of food

Excretion Excretion means 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

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

Growth Growth means the organism develops into an adult For micro-organisms, this means their cell grows to full size before reproducing For multi-celled organisms, this means that cells divide, organs grow in size, and systems develop maturity

2 main groups of living things Plants Animals

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

Can you guess the Vertebrates + Invertebrates? Bone Blaster game Snail Ant Dolphin Hedgehog Crab Fish Starfish Bee Snake Lobster Platypus Spider Worm Fox Frog Dragonfly Blackbird

Vertebrates are divided into 5 groups

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

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