The Grass Doctor

Biology help me! Ecology and the Environment!?

1. What is an abiotic factor in a tropical rain forest? (Points: 3) the trees the top predator the plant life the rain 2. Which of the following can be considered an ecosystem? (Points: 3) a population of fish in a small lake an entire desert, including abiotic and biotic factors the wood of a rotting log the community of organisms within a desert 3. Which information would a biologist most need to know about an area to identify an ecosystem? (Points: 3) the predators and the prey that live there the biotic and abiotic factors there the longitude of the area the highest degree of latitude 4. Which biome type occupies the largest area on earth? (Points: 3) desert savanna temperate grassland marine 5. Which of the following is an accurate example of how energy flows through organisms in an ecosystem? (Points: 3) from grass to mouse to grasshopper from sun to bird to worm from sun to tree to caterpillar from eagle to rabbit to grass 6. Snakes eat bats. Hawks also eat bats. Bats eat moths and so do spiders. Which sentence best describes how those organisms are related in terms of energy flow? (Points: 3) They make up a community. They make up a food chain. They make up an ecosystem. They make up a food web. 7. The following flow of energy occurs in one ecosystem: alga to insect larva to flatworm to fish. Which trophic level has the most energy to pass on to the next? (Points: 3) alga insect larva flatworm fish 8. Which sentence describes how an animal might interact with the abiotic factors in its environment? (Points: 3) It consumes producers. It inhales oxygen. It is degraded by decomposers. It is part of a food web. 9. Which characteristic could be used to identify a biome? (Points: 3) the history of human impact on the region types of endangered species that live there amount of precipitation the region receives the complexity of the food web in the region 10. Which organisms might you find in a taiga? (Points: 3) polar bears, penguins, and mosses prairie dogs, grasses, and buffalo coral, sharks, and dolphins moose, evergreen trees, and bears 11. If a caterpillar is a primary consumer, what level will energy flow to next after the caterpillar? (Points: 3) producer primary consumer secondary consumer tertiary consumer 12. If arranged in an energy pyramid, which of these four organisms would contribute the least amount of usable energy? (Points: 3) mouse grasses rabbit wolf

Public Comments

1. 1.the rain 2.lake& desert with biotic and abiotic factors 3.the biotic and abiotic factors there 4.marine 5.from sun to tree to caterpiller 6.food web 7.alga 8.it inhales oxygen 9.the complexity of food web 10.polar bears, penguins, and mosses 11.secondary consumer 12.wolf