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- 1. ENVIRONMENT REVISION Name: Class: Date:
- 2. Pg 10-11 Competing for resources Pick a habitat-woodlands, seaside, Savannah. Draw and describe one type of inter- species competition and one type of intra-species competition. Pg 12-13 Sampling and estimating populations Outline, step by step, how you would count the number of daises in a field. Why wouldn't you just count all of the daises in a field? Pg 16 -17 Chains, Webs and Pyramids Write 2 food chains from this food web. NAME A Producer: Primary Consumer: Secondary Consumer: Herbivore: Carnivore: Predator and Prey:
- 3. Draw a pyramid of numbers and a pyramid of biomass for the following information: Organism Number of Average biomass (dry) mass Total Biomass of all individuals of one individual (grams) individuals (grams) Ladybird 10 1 10 Aphid 1000 0.1 100 Rose Bush 1 1000 1000 Pyramid of NUMBERS Pyramid of BIOMASS Pg 18 – 19 Wheat vs Meat The energy arrow shows what happens to the energy in the rosebush that an aphid eats. Some energy is used by the aphid for Energy in Only 10% of the energy is used for . Some energy passes out of the aphid as .
- 4. Pg 20 – 21 Going Organic Circle the words which relate to organic farming: factory farms Artificial fertilizers pesticide manure biological control battery cages Intensive farming crop rotation chemical pesticides compost Pg 22 – 23 Changing organisms Over thousands of years, pigs have been bred from wild boars. Name two characteristics that have been selected for in breeding modern pigs. 1) __________________________________________________________________ 2) __________________________________________________________________ Decide if the changes can be made by selective breeding, or if they are changes that can be made by genetic modification. Wheat that produces bigger seeds Banana plants that produce a vaccine in their fruit Rabbits that glow in the dark Wheat that cannot be killed by a particular wheat killer Cows that produce more milk Dogs that can run faster Pg 24 – 25 Natural Selection Match Darwin's Observations to his Deductions Observation Deduction Organisms over-produce, but The ones who are best adapted populations remain fairly to their environment are more constant likely to survive and breed All organisms show variation Well-adapted parents may pass on some useful characteristics Some characteristics are Some offspring must die inherited
- 5. Pg 26-27 Evidence for Evolutionary Name 2 similarities between the Lobe-finned fish and Early amphibian: 1) __________________________________________________________________ 2) __________________________________________________________________ Name 2 differences between the Lobe-finned fish and Early amphibian: 1) __________________________________________________________________ 2) __________________________________________________________________ Draw 3-4 steps of how fossils are formed. Pg 32 Environment Keywords
- 6. How are these groups of words related? Pyramid of numbers Pyramid of Biomass Producer Predator Prey Genetic Modification Selective breeding Organic Intensive Evolution Natural Selection Inter-species Intra-Species Food Chain Food Web