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Concept explainers
To define: Different feeding levels in ecosystems by giving examples.
Introduction: Food chain represents the transfer of food energy from one trophic level to successive trophic levels. A food chain begins with the producers that synthesize food by the process of photosynthesis. The producers are eaten by herbivores which in turn are eaten by carnivores. The carnivores are then eaten by some other carnivores or get decomposed by micro-organisms after they die.
To determine: The feeding level that is most likely to include most humans.
Introduction: Food chain represents the transfer of food energy from one trophic level to successive trophic levels. A food chain begins with the producers that synthesize food by the process of photosynthesis. The producers are eaten by herbivores which in turn are eaten by carnivores. The carnivores are then eaten by some other carnivores or get decomposed by micro-organisms after they die.
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Chapter 24 Solutions
Human Biology (MindTap Course List)
- If the rate of some process is governed by the abundance of prey individuals, we say that it is prey-dependent. Give some examples of prey-dependent processes.arrow_forwardIndentify the correct food web for each question. Which type of food web cycles materials and moves energy into and out of the community? Grazing Which type of food web is dominant in Central Park's forests and pond? Detrital Which food web includes humans? Grazingarrow_forwardOptimal foraging theory can make predictions about an animal’s food choice. Which of the following is the most accurate statement about optimal diet breadth as resource quality, handling time and distribution changes? As handling time increases, animals should specialize As the distance between resources increases, animals should generalize As the energy content of the resources increases, animals should generalize As the distance between patches increases, animals should stay longer in a patch The following diagrams show four distribution patterns of resources. Each circle represents one unit of a resource, say, a food item. For which of these distributions would the Marginal Value Theorem be useful for making predictions about optimal foraging behavior. (Shown in image)arrow_forward
- The following is NOT true about trophic levels Animals capable of feeding at many trophic levels will be able to survive if portions of their food supply are decreased or eliminated Secondary consumers belong to the third trophic level Primary consumers belong to the first trophic level Each stage through which energy travels is called a trophic levelarrow_forwardExplain predator-prey dynamics and clearly state the factors that influence this relationship.arrow_forwardFeeding levels within ecosystems are also called______. An illustration of these levels with only oneorganism at each level is called a(n)_______ . Feeding relationships are most accurately depicted as_________ .arrow_forward
- Describe examples of coevolution between consumers and their prey.arrow_forwardHow do humans differ from other species in the ability to “choose”a carrying capacity for their environment?arrow_forwardInterpret the following graphs: In the graphs, the number of days are 18.. 1 day is equal to 60 sec. For the first graph, days are taken on x-axis. The mean foraging times are taken on y-axis.arrow_forward
- What are the important factors that affect the composition of feeds in the Philippines?arrow_forwardGive examples of evolved defenses against predation andherbivory.arrow_forwardFood 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 sealarrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
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