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Predator prey relationships. 1. Write down whether each one is a predator or prey. 2 . For each of the animals, write down two adaptations that it has for either catching prey or avoiding being eaten. 3. Name two adaptations that many predators have for catching and killing prey.
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Predator prey relationships 1. Write down whether each one is a predator or prey. 2. For each of the animals, write down two adaptations that it has for either catching prey or avoiding being eaten. 3. Name two adaptations that many predators have for catching and killing prey. 4. Name two adaptations that many prey have to avoid being eaten. LO: investigating changing populations by looking at predator/prey relationships
Great white shark attack • Killer whales attacking seals • Lions and zebra • Zebra and croc • Killer whale and grey whale • Tiger shark and albatross • Python and antelope
Population (thousands) Year Lynx and snowshoe hare 1. Draw a line graph of this data2. Which is the predator and which is the prey?2. What might increase the hare population?3. What might decrease the hare population?
8D A few words to check Can you match each word to its definition? CarnivoresConsumersProducersHerbivoresOmnivores Animals that only eat animals. Organisms that cannot make food by photosynthesis. Organisms that build food using energy from sunlight.Animals that only eat plants. Animals that eat plants and animals. Animals that eat plants and animals.Organisms that build food using energy from sunlight.Animals that only eat plants.Organisms that cannot make food by photosynthesis.Animals that only eat animals.
Battle at krugar http://www.youtube.com/watch?v=LU8DDYz68kM http://www.youtube.com/watch?v=Qqa0OPbdvjw A food web shows the relationship between organism in an habitat. The arrows show what eats what and the flow of energy
Write down the longest food chain you can see in this food web
Write down a food chain from this video • Whale shark and krill
compost Mr Gaynor Make a food chain
compost Mr Gaynor
1. Here are three food chains: • A grass rabbit fox • B wheat field mouse fox • C wheat field mouse grass snake 1 Sketch a pyramid of numbers for food chain A. 2 Use all three food chains to draw a food web. • Name one producer in the food web. • Name a primary consumer. • Name a secondary consumer. a If the field mice died, what would happen to the number of grass snakes? b Why would this happen? c If the field mice died, what might happen to the number of rabbits? d Why might this happen?
Symbiosis- buffalo, birds and bacteria Parasitic mind control • http://www.youtube.com/watch?v=lGSUU3E9ZoM&feature=fvst • http://www.youtube.com/watch?v=rLtUk-W5Gpk&feature=fvst Zombie snails http://www.youtube.com/watch?v=EWB_COSUXMw Body invaders http://www.youtube.com/watch?v=vMG-LWyNcAs
Summary • http://www.youtube.com/watch?v=tzSvEw4W16U • Learning Logs: • On your book answer 3of the following statements: • In the lesson I learnt…. • I was surprised by…. • One thing I liked most about today was…. • The main thing I want to know more about is….. • I was interested in…… • One thing I’m not sure about is…..