* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Life Science Study Guide
Survey
Document related concepts
Biological Dynamics of Forest Fragments Project wikipedia , lookup
Wildlife corridor wikipedia , lookup
Biodiversity action plan wikipedia , lookup
Pleistocene Park wikipedia , lookup
Theoretical ecology wikipedia , lookup
Lake ecosystem wikipedia , lookup
Sustainable agriculture wikipedia , lookup
Conservation agriculture wikipedia , lookup
Renewable resource wikipedia , lookup
Habitat conservation wikipedia , lookup
Transcript
Life Science Study Guide Name_________ 1. What are some needs of organisms? Food, shelter, water, space (carrying capacity) does the area have enough resources to carry the organism. Limiting factors – keeps the population from growing beyond a certain size. 2. What happens to an organism if its needs are not being met? Animals needs must be met or they will die or have to move to a new habitat. They can also adapt to the changes but this takes much time. The organism's habitat is gone? Die or move to a new habitat and adapt to the differences. 3. How do people change ecosystems (beneficial and detrimental)? Beneficial – laws protecting animals, hunting, parks and nature preserves, & veterinarians. Detrimental – building shopping plazas, highways, buildings, mining, hunting & pollution. 4. How do animals change their environment (beneficial and detrimental)? Beneficial – earthworms build burrows – passageways to let in air and water. Also add nutrients to the soil. Corals make new habitats for other animals, beavers make new habitats for other animals. Predator/Prey relationship helps keep populations in check. Detrimental – beavers flood lands destroying animal homes and cutting down trees. Large animals trample plants. Rabbits, moles and other animals dig in the soil and change the land. 5. Draw a food web. (Use vocabulary card from notes) 6. Draw and label a food chain. (Use vocabulary card from notes) 7. Explain why there are more producers in an ecosystem than top consumers. There are more producers because not very much energy is passed on to the next level when they are being consumed (10%). The energy pyramid is not very efficient. 7. Define the following terms. Producer – plants, they make their own food through the process of photosynthesis. Consumer – anything that eats another organism to get energy. Decomposer – breaks down dead and decaying matter and adds nutrients to the soil through this process. Herbivore – only eats plants Carnivore – only eats meat Omnivore – eats both plants and meat 8. How can an exotic species effect the environment? Sometimes there is no change when an exotic species is introduced. Other times the exotic species has no know natural predator and can take over a habitat. This can wipe out or harm the native species that grows there. Examples from class are the zebra mussels and the kudzu plant. 9. How do adaptations help animals? An adaptation is anything that can help an animal survive. For example a cactus has needles. A hawk has sharp talons to help grasp its prey. 10. Know the important characteristics of the biomes we studied. (Tundra, Temperate Forest, Cold Desert, Hot Desert, Taiga, and Grassland) This test will ask you to use what you know and infer what might happen. For example if a pesticide runs into a lake and kills the minnows how might the rest of the lake community be affected. There will be one 2 point question, two 4 point questions and 18 multiple choice questions.