Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Ecology Final Study Guide Using the abo
Document related concepts
Transcript
Name: _______________________________________________ Date: __________ Period: _________ Ecology Final Study Guide Using the above food web, list all the following: Producers: carrots, grass, grain Consumers: rabbits, fox, mouse, grasshopper, owl, bird Herbivores: rabbit, mouse, grasshopper Carnivores: fox, owl Omnivores: bird Autotrophs: carrot, grass, grain Heterotrophs: rabbits, fox, mouse, grasshopper, owl, bird Where does all the energy in this food web ultimately come from? The sun Herbivores obtain their energy from eating plants (autotrophs) The arrows in the food web show the flow or direction of energy. Which organisms would most likely increase if the population of owls suddenly decreased? Mouse and grasshopper What is the niche of the grass? producer Which organism would you expect there would be the least amount of? owl What is the niche of decomposers? Break down waste & dead organisms to return raw materials to environment (recyclers) List 5 abiotic factors SWATS – sunlight, water, air/atmosphere, temperature, soil What does biotic mean? living Give an example of an abiotic factor affecting a biotic factor; Plants need water, carbon dioxide and sunlight to grow Give an example of a predator – prey relationship fox (predator) rabbit (prey) The four essential components of a habitat are water, food, shelter, space Energy pyramids show a model of the energy flow in an ecosystem. There is the most energy at the bottom, the least amount of energy at the top. For a species to be invasive, it has to be non-native and cause harm. Name 3 places carbon is found in nature soil, live animals and plants, dead animals and plants, water, animal waste, decomposers, atmosphere Threatened and endangered species are in danger of becoming extinct This graph shows a predator-prey relationship. Which line represents predator and which line represents prey? prey predator The graph below shows the changes in the size of a fish population over time. This dotted line represents carrying capacity Define carrying capacity: the largest population size an ecosystem can sustain or carry Define limiting factors: abiotic and biotic factors that prevent the continuous growth of a population How do limiting factors affect carrying capacity? Limiting factors control carrying capacity genus and species are used in a species scientific name ADD: Keystone species: Keystone species are essential to the health of an ecosystem. If they are removed, then the ecosystem collapses or would be dramatically different.
