Homework Did anyone find another animal with a special adaption for their environment?
Today we will.. Look at Food Chains and create our own See how they link together to form a food web Revision Quiz
Food Chains
Video &feature=youtu.be Pick out at least 5 key words from the video
Food Chains Food chains show which organisms eat other organisms GrassRabbitFox The arrows show the transfer of energy from one organism to the next.
Where do we get our energy?
The energy for any food chain comes from the sun Plants use the suns energy to make food in their leaves through the process of photosynthesis
Producers - organisms which can make their own energy from carbon dioxide and water using sunlight for energy (plants) Primary consumer - organisms which eat producers (herbivores) Secondary consumers - organisms which eat primary consumers (carnivores) Tertiary consumers - organisms which eat secondary consumers (carnivores)
Decomposers Feed on dead animals and plants They are also consumers and do not make their own food Bacteria Fungi Worms Dung Beetles
Each level of a food chain is known as a trophic level Food chains always start with a producer. Producers are always on the first trophic level.
Food Chains Oak Tree Bark beetle Wood mouse Barn owl Producer Primary consumer Secondary consumer Tertiary consumer First trophic level Second trophic level Third trophic level Fourth trophic level Each level of a food chain is known as a trophic level
Activity Making your own food chain pyramid
Food Web In nature, single food chains are rare We have already looked at competition between organisms In nature food chains are interconnected to form a food web
Food Web 1. Write down two food chains from this food web.
Questions 1. What will happen to the number of clown fish if the sharks become vegetarian? 2. What effect will this have on the number of zooplankton? 3. What will happen to the Blue Regal fish if a disease wipes out the small invertebrates.
Ecology Quiz! Get into teams of 3-4 You need a pen and paper!