Research the approximate size of the highest level consumer in the ecosystem. How much biomass is necessary to support it and the other consumers in the ecosystem? The primary producers: plants The primary consumers: butterfly, fire ants, fly, grasshopper, mouse, fox squirrel, wasp The secondary consumers: birds, barn owl, rattlesnake, red-eared slider, dog, spider The tertiary consumers: coyote, alligator, bald eagle

Name the resources need to be used in a sustainable manner.

You are studying primary productivity and biodiversity patterns of an ecosystem. The ecosystem is represented by the climatograph below. The Gross Primary Productivity (GPP) is measured to be 5000 grams of carbon per square meter per year, and the Total Respiration (RT) is measured to be 300 grams of carbon per square meter per year.  - What kind of biome is this? - Calculate the Net Ecosystem Production (NEP) for this ecosystem - What does the calculated NEP value indicate about the carbon balance and overall productivity of the ecosystem? (one sentence) - Based on both the climatograph and the NEP, what can you say about the biodiversity of plants versus consumers? Choice 1 of 4:plant biodiversity is greater than consumer biodiversity Choice 2 of 4:consumer biodiversity is greater than plant biodiversity Choice 3 of 4:consumer biodiversity is the same as plant biodiversity Choice 4 of 4:lower plant biodiversity compared to consumer biodiversity

You will be examining the relationship among organisms inhabiting a small lake. Examine the “Lake Inhabitants” sheet for information about the organisms found in the lake.  What biotic and abiotic factors will affect the aquatic plants in the lake?    What biotic and abiotic factors will affect the bluegill in the lake?    Looking at the organisms associated with the lake, organize them into three trophic groups: producers, consumers, and decomposers.   Separate the consumers into three subcategories: herbivores, carnivores, and omnivores.    Create 3 different food chains found within the lake. Food chain #1 should contain 3 organisms, food chain #2 should contain 4 organisms, and food chain # 3 should contain 5 organisms. The arrows should point in the direction the energy is flowing through the food chain. You can either use the “>” as your arrow or the Insert Symbol function to insert an arrow into your food chains.       As the energy flows through each trophic…

1. Define biotic and abiotic factors of the environment. Give an example of each. 2. How do ecologists define the term ecosystem? 3. State the competitive exclusion principle. 4. Identify three different types of consumers. Name an example of each type. 5. Describe the role of decomposers in food webs. 6. What is a biogeochemical cycle? Name an example.

Food webs are helpful diagrams to understand the relationships of organisms within a biological community. Answer the following questions using the food web below. Baleen whale Smaller toothed Sperm whale whales Penguins Elephant seal Leopard seal Other birds Fish Other seals Squid Krill Other herbivorous zooplankton Carnivorous zooplankton Phytoplankton Which of the following can be a secondary consumer? squid other seals krill herbivorous zooplankton fish other birds elephant seal

Land Use in the United States Parks and preserves 13% Urban land 6% Cropland 20% Other 7% Forest land 28% Rangeland and pasture 26% What percentage of land is being used by humans to raise crops & graze livestock? What percentage of land is not available for growing food? Explain your answer.

Organisms in an ecosystem can be classified as producers or consumers producers provide food for the consumers. An organism that consumes only producers is called ?

A species that feeds on herbivorous species is called a tertiary consumer. keystone species. secondary consumer. primary consumer.

Based on the food web shown below, the giraffe, the grasshopper, and the deer are all consumers. Identify the type of consumer they represent and explain what this means.