Answer this 3 basic questions about environmental science: 1. Name two organisms in your area that represent each of the trophic levels 3rd trophic level = 2nd tophic level = 1st trophic level = 2. List the variety of ways that species have developed to escape their predators (at least 4 ways). 3. Design a food web for humans. (it should be more than 10 species)

Answer this 3 basic questions about environmental science: 1. Name two organisms in your area that represent each of the trophic levels 3rd trophic level = 2nd tophic level = 1st trophic level = 2. List the variety of ways that species have developed to escape their predators (at least 4 ways). 3. Design a food web for humans. (it should be more than 10 species)

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter46: Ecosystems

Section: Chapter Questions

Problem 10RQ: The loss of an apex consumer would impact which trophic level of a food web? primary producers...

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Choose the best answer. 1. The loss of energy at each trophic level is caused by the following EXCEPT: a. Food passing through animals are partially digested b. Energy is transformed from mechanical energy or other forms c. Energy is lost during anabolic processes 2. It is referred to as the physical and biotic habitat which surrounds us, that which we can see, touch, and smell. a. System b. Community c. Environment d. Ecology 3. A group of plant and animal population living in the same environment a. ecosystem b. species c. community d. population 4. The variation in environmental conditions that is beyond the range of tolerance may result in a. None of these b. Deterioration of ecosystem c. Both b and d d. Loss of species that are vital links in food webs 5. Transpiration is a process involved in a. carbon dioxide b. phosphorus c. nitrogen d.…
What biotic and abiotic factors will affect the aquatic plants in the lake? 2. What biotic and abiotic factors will affect the bluegill in the lake? 3. Looking at the organisms associated with the lake, organize them into three trophic groups: producers, consumers, and decomposers. 4. Separate the consumers into three subcategories: herbivores, carnivores, and omnivores. 5. 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. 6. As the energy flows through each trophic level, how much energy is lost from the food chain as heat? 7. What happens to the number of organisms as they go up through the trophic levels? Explain why this…
Describe five ways in detail, which you can reduce your ecological footprint to save our planet Earth.
The loss of an apex consumer would impact which trophic level of a food web? primary producers primary consumers secondary consumers all of the above
1. Billy is stranded on an island. He has unlimited access to water, six chickens, and a few bags of corn. He is considering his options for how to survive on the island until he is rescued. Draw a model of the food web and the trophic pyramid on the island for each of these three options. Option A: Feed all the corn to the chickens and eat their eggs. Trophic Pyramid Food Web Option B: Share the corn with the chickens. Eat their eggs, then eat the chickens when the corn runs out. Food Web Trophic Pyramid Option C: Eat the chickens first, then eat the corn. Food Web Trophic Pyramid
3 Study this diagram of an ecosystem and answer the questions that follow, Figure 5.10 a What is an ecosystem? b Which number refers to a herbivore? Which number refers to a: predator primary consumer, and carnivore? d Does number 2 refer to a herbivore, primary consumer or producer? Suggest a reason for your answer. e Which number refers to an: organism that can influence the ecosystem more than any other organism, and ii an omnivore? What is an omnivore? Briefly describe the changes that may result in the ecosystem if organism 4 is removed from the area.
Create a food web and Trophic Pyramid for an identified ecosystem. Only drawings Requirements: Identify your ecosystem (desert, rainforest, artic, etc) Food Web - 1. at least 15 organisms 2. 5 levels represented 3. Correct arrow movement 4. Circle an organisms that you believe will have an impact of the web if it went extinct Pyramid - 1. draw and label 2. Use examples from the web for the levels 3. Include the rule of 10
6. Mant top level consumers are large carnivores. Explain how their size affects or is affected by the dynamics of energy, biomass and/or numbers pyramids. 7. What other factors in an ecosystem may affect pyramid shapes for that ecosystem? 8. What level of an ecological pyramid would contain humans? Please explain your choice. 9. Many farmers use pesticides on their fields to keep pests from eating their crops. These pesticides, however, can have serious, negative effects on other organisms thaat interact with the ecosystem. For that reason, some people have suggested that bringing in predators to eat the pests would be a better soulution than pesticides. a. Explain what affeccts bringing predators in could have on the ecosystem. b. Which level of organisms is most susceptible to extinction. Please support your answer.
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…
Zooplankton feed on microscopic surface-dwelling plants Plankton are microscopic organisms on the surface of water Gastropods can hide under the sand during high tide Individual organism that is made of cells Phytoplankton are microscopic plant surface dwellers Organisms are interacting with one another Life forms are adapted on land, air, and water Birds have stronger wings for long distance travel Gastropods have shells Group of organisms which interbreed Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose... Choose... ◆ + + + ◆ ◆ ◆ →
A conceptual model representing the role, interaction, reaction, and density of essential ecosystem components is shown below. Examine the model and the relationships between the major players (i.e., predator, prey, producer). The structure's most important role is played by these major players. It's also worth noting that nutrition has been included in the model. This is the abiotic component that has a direct or indirect impact on the interaction. Question: Why does the organism’s interaction appear in an oscillating pattern? What does it suggest?
When hunting disrupts the balance in the food chain by removing all owls, there will be no predators on snakes, leading to their increase in numbers. Considering the scenario where the number of lost owls (4) is replaced by snakes, compute for energy units following in completing the table below. Trophic Levels No. Individuals in Each Trophic Level No. of Units Received from Trophic Level Above No. Units Used / Individual (Resp) No. Units Used in Trophic Level No. Units Remaining & Passed on to Next Trophic Level Mean No. Units Available per Individual in Trophic Level SUN +E = 6 1) Plants 30 2 2) Grasshopper 19 2 3) Frog 12 2 4) Snake 8 + 4 = 12 2 5) Owl 0 2