Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 38.3, Problem 6MC
Summary Introduction
To analyze:
The way mercury becomes toxic through a hypothetical energy pyramid which led to the reduced reproductive success of the nearby insect-eating birds.
Introduction:
Environmental science is an academic discipline that combines the physical and biological sciences. Environmental science offers an interdisciplinary, quantitative, and integrative method for studying environmental processes. The study of ecological principles offers a framework for comprehending the basic interactions between the natural community and its surroundings, as well as with specific ecosystems such as the forest, soil, ocean, and inland waterways.
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Assume that humans are the second-level carnivores and that each energy unit in their level represents 25 people. How many people can be supported in the ecosystem?
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A Food Web
om
Eage
Pythan
Wolf
Rat
Dragonfly
Thrush
Frog
Butterfly
Fruit Fly
Grasshopper
Mangoes
Corn
A Flowering Plant
Lavenders
Look at the food web above to answer the following questions.
1. Which organisms are the producers in this food web?
2. Which organism is an example of a primary consumer?
3. Which organism is an example of a tertiary consumer?
Chapter 38 Solutions
Biology: Concepts and Investigations
Ch. 38.1 - Distinguish among communities, ecosystems, and...Ch. 38.1 - Prob. 2MCCh. 38.1 - Distinguish between habitat and niche.Ch. 38.1 - Prob. 4MCCh. 38.1 - Prob. 5MCCh. 38.1 - Prob. 6MCCh. 38.1 - Prob. 7MCCh. 38.2 - Prob. 1MCCh. 38.2 - Prob. 2MCCh. 38.2 - Prob. 3MC
Ch. 38.2 - Prob. 4MCCh. 38.3 - Identify the trophic levels of a food chain.Ch. 38.3 - Prob. 2MCCh. 38.3 - Prob. 3MCCh. 38.3 - Prob. 4MCCh. 38.3 - Prob. 5MCCh. 38.3 - Prob. 6MCCh. 38.4 - Prob. 1MCCh. 38.4 - Prob. 2MCCh. 38.4 - Prob. 3MCCh. 38.4 - Prob. 4MCCh. 38.4 - Prob. 5MCCh. 38.5 - Prob. 1MCCh. 38.5 - Prob. 2MCCh. 38 - Prob. 1MCQCh. 38 - Cyanobacteria are photosynthetic bacteria that...Ch. 38 - Prob. 3MCQCh. 38 - Prob. 4MCQCh. 38 - A large tree falls over in an old-growth forest,...Ch. 38 - Prob. 6MCQCh. 38 - In a prairie, which trophic level should have the...Ch. 38 - Prob. 8MCQCh. 38 - Prob. 9MCQCh. 38 - Prob. 1WIOCh. 38 - Prob. 2WIOCh. 38 - Prob. 3WIOCh. 38 - Prob. 4WIOCh. 38 - Prob. 5WIOCh. 38 - Prob. 6WIOCh. 38 - Prob. 7WIOCh. 38 - Prob. 8WIOCh. 38 - Prob. 9WIOCh. 38 - 1. Review the definitions of ecology, populations,...Ch. 38 - Prob. 2PIT
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Similar questions
- Using the diagram of a food pyramid for reference, estimate the following: a. How many kilograms of plankton does it take to produce 25 kilograms of invertebrates? _____ kilograms of plankton b. How many kilograms of invertebrates does it take to produce 5 kilograms of fish? _____ kilograms of invertebratesarrow_forwardWhen hunting disrupts 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 the table in no. 1 (Sun + E = 6) and answer the following questions: In comparison with the natural food chain, which component received less energy in this unbalanced food chain? What is the reason for the above? What might be the consequences of the above? What is needed to recover balance in the food chain? How can this be achieved in this specific situation?arrow_forward“The pyramid of energy is always upright” states that A)The energy conversion efficiency of herbivores is better than carnivores. B)The energy conversion efficiency of carnivores is better than herbivores C)Producers have the lowest energy conversion efficiency D)Energy conversion efficiency is the same in all trophic levelsarrow_forward
- List two ways in which you could apply these concepts : (a) “as energy flows through ecosystems in food chains and webs, the amount of chemical energy available to organisms at each succeeding feeding level decreases” and (b) “matter, in the form of nutrients, cycles within and among ecosystems and the biosphere, and human activities are altering these chemical cycles.” to making your lifestyle more environmentally sustainable.arrow_forwardEnergy transferred from one trophic level to the next in an ecosystem is measured in calories, numbers, and in biomass. If a rangeland has a biomass of 100, 000g/m2 from the grass, how much biomass will be available in human beings who eat the cow that eat that grass?arrow_forwardBased on the information below, list the following species in order of lowest to highest on the food chain: Mackerel, Dolphins, Birds, Krill. (Hint: If two species occupy the same level, they would be located at an equal position in the food chain).arrow_forward
- Which of the following statements about nutrient challenges faced by organisms is FALSE? Carnivores are limited by the ratio of carbon to nitrogen found in prey. Detritivores consume food rich in carbon but poor in nitrogen. Plants can exhibit the same type of functional response curve describing the rate of energy intake as carnivores. The diet of a carnivore can vary geographically depending on the availability of prey.arrow_forwardDraw a diagram of the model you created that shows how energy flows through a food web Use arrows to show the energy path flowing from one organism to another. Include a legend to provide details about color representation. For example, the green lines show energy flowing from producers.arrow_forwardBased 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.arrow_forward
- Use the words below to fill in the table of producers and consumers tree whale bop lizard lettuce grass octopus chicken Producer Consumer Ichale byn chicken el कमर्षण्य बि こoz.l Use the words in the word bank to complete three different diagrams depicting the movement of energy. One word will be used more than once. suntight aphid sunflower rabbit hawkarrow_forwardImagine a chemical spills into a lake. At levels of 10 part per 1000, this chemical causes reduced fertility in Rainbow Trout (a type of fish), and at 20 parts in 1000 it is lethal to Rainbow Trout. It is not toxic for fish in water at the concentration present at the time of the spill, but it will biomagnify in the invertebrate prey that trout feed on. The table below shows the concentration of the chemical in the invertebrates in the years after the spill. Year after spill Chemical concentration in invertebrates (parts per 1000) 0 1 2 1 5 7 10 18 20 21 3 4 5 6 Based on this information, answer the following questions. a. In what year following the spill will the birth rate of trout decrease? b. In what year will the mortality rate of the trout increase? C.arrow_forwardDo larval mosquitos or adult mosquitos have more nutritional value in the context of a food chain? Why?arrow_forward
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