1 / 30

Variety of Life

Variety of Life. Is It Alive?. How do you know if something if alive or not? There are seven life processes (MRS GREN) : M ovement R espiration S ensitivity G rowth R eproduction E xcretion N utrition. MRS GREN.

apria
Download Presentation

Variety of Life

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Variety of Life

  2. Is It Alive? • How do you know if something if alive or not? • There are seven life processes (MRS GREN): • Movement • Respiration • Sensitivity • Growth • Reproduction • Excretion • Nutrition

  3. MRS GREN • Movement- we need to move around to get food, plants can move their leaves towards sunlight • Respiration- both plants and animals take in Oxygen from the air to release energy • Sensitivity- we are all sensitive to the cold, acidity etc.

  4. MRS GREN • Growth- We all grow up (and out!) • Reproduction- All living things make more of themselves • Excretion- Getting rid of waste e.g. we breathe out Carbon Dioxide • Nutrition- Eating (plants take in nutrients from the ground)

  5. Organisms • Organism means living thing • There are two big groups: • Plants • Animals • There are alsobacteria and virusesthat make us sick

  6. Classification • Carl Linnaeus, a Swedish scientist came up with the classification system • Organisms are placed in groups if they are similar to each other

  7. Animals • Animals can be divided into: • vertebrates (have a backbone) • invertebrates (no backbone) • Which group do we belong to? • Vertebrates • Which group do worms belong to? • Invertebrates

  8. Vertebrates • There are five groups (BFARM): • Birds • Fish • Amphibians • Reptiles • Mammals

  9. Weird Mammals • Dolphins- they have lungs A Bottlenose Dolphin

  10. Weird Mammals • Whales- have lungs Killer Whales

  11. Weird Mammals • The Blue Whale- the largest animal

  12. Weird Mammals • Bats- they are related to rodents

  13. Reptiles • The Tortoise live on land

  14. Reptiles • Turtles live in water The Green Sea Turtle

  15. Birds • Emperor Penguins are one of the few organisms to live in Antarctica

  16. Amphibians • The Fire salamander can re-grow legs that have been cut off

  17. Amphibians • The poison dart frog is lethal to humans

  18. Fish • Sharks are fish, they have gills The Great White Shark

  19. Annelids • These are Earthworms and leeches • They are invertebrates • They have rounded bodies • Their body is segmented

  20. Arthropods • This big group (phylum) of ancient invertebrates include smaller groups (classes) of insects, spiders, millipedes and crabs • They have a hard body • It is divided into segments • They have jointed legs

  21. Arachnids • They have 8 legs • Two body parts and no wings

  22. Insects • They have 6 legs and two pairs of wings • They have 3 body parts: Thorax Head The Damselfly Abdomen

  23. Insects (Stag Beetle) Head Thorax Abdomen

  24. Molluscs • These are slugs, snails, squid and the octupus • They have soft bodies with a head and a muscular foot

  25. Plants • These are divided into: • Flowering plants (conifers and seed producing flowers) • Non-flowering plants (Algae, ferns and mosses)

  26. Non-Flowering Plants Algal bloom on a river

  27. Flowering Plants This Passion Flower makes seeds

  28. Keys • This is a question key • It can be used to separate organisms according to their characteristics • Can you name the invertebrate A, B, C and D A= Ant B= Mite C= Spider D= Mayfly

  29. Diagram Keys

More Related