Concept explainers
The feeding relationships among the species in a community determine the community’s
- A. secondary succession.
- B. ecological niche.
- C. species richness.
- D. trophic structure.
Introduction:
There are various characteristics of the communities like their diversity and also their species feeding relationships.
Answer to Problem 1TYU
Correct answer:
The feeding relationship among the species in a community determines the trophic structure of the community. Therefore, option (D) is correct.
Explanation of Solution
Reason for the correct statement:
Trophic level refers to the position that a specific organism takes place in the food chain. The structure of trophic describes the relationship of feeding amongst the organisms. It is thus, also known as the food web or food chain.
Option (D) is given as “trophic structure”.
“The feeding relationship among the species in a community determines the trophic structure of the community”, it is the right answer.
Hence, option (D) is correct.
Reasons for the incorrect statements:
Option (A) is given as “secondary succession”.
It is one of the types of ecological succession. It refers to the change or destruction that occurs in a habitat due to any natural disaster. So, it is a wrong answer.
Option (B) is given as “ecological niche”.
It shows the role and position of a species with the environment. So, it is a wrong answer.
Option (C) is given as “species richness”.
It refers to the measurement of species diversity that is the number of species variety in a community. So, it is a wrong answer.
Hence, options (A), (B), and (C) are incorrect.
The trophic structure determines the feeding relationship among the species in a community.
Want to see more full solutions like this?
Chapter 41 Solutions
Campbell Biology in Focus
Additional Science Textbook Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Anatomy & Physiology: The Unity of Form and Function
Laboratory Experiments in Microbiology (11th Edition)
Campbell Essential Biology (6th Edition) - standalone book
Fundamentals of Anatomy & Physiology (11th Edition)
- The _______________ signifies that species richness is greater where two communities meet than at the center of either community. (a) edge effect (b) fundamental niche (c) character displacement (d) realized niche (e) limiting resourcearrow_forwardA feeding relationship that proceeds from algae to a fish, then to a fisherman, and then to a shark is _____. a. a food chain b. a food web c. a and barrow_forwardAn example of a pioneer species in primary succession and a pioneer species in secondary succession, respectively, are Select one: a. lichens and grass b. moss and insects c. lichens and trees d. grass and shrubsarrow_forward
- When substances are not broken down in metabolism but stored and passed on to higher trophic levels which of the following processes occurs? Group of answer choices a. Predation b. Coevolution c. Ecological Succession d. Biological Magnification e. Competitionarrow_forwardAkeystone species is one:a.that makes up a very large proportion of total community biomass.b.that feeds on a very large fraction of all available prey species.c.that is fed on by a very large fraction of all predators in itscommunity.d. whose feeding activities have adisproportionate effect on the structure of its community.e.that occupies the lowest level (the base) of the food web.arrow_forward"Write a scenario describing what would happen to an ecosystem or to the human system in the event that:(a) All producers are killed through loss of fertility of the soil or through toxic contamination, (b) decomposers and detritus feeders are eliminated. Support all of your statements with reasons drawn from your understanding of the way ecosystems function"arrow_forward
- Choose a biological resource and address the following four questions using examples with that biological resource. a) Biomass production over time b) Carrying capacity and extinction threshold c) Management of the recruitment rate d) Describe two ways that climate change could impact the biological resource you selected for this question RESOURCE ECONOMICSarrow_forwardWhy do moderate levels of disturbance result in an increase in community diversity?a) The resulting uniform habitat supports stability, which in turn supports diversity.b) Less-competitive species evolve strategies to compete with dominant species.c) Habitats are opened up for less competitive speciesd) Competively dominant species infrequently exclude less competitive species after a moderate disturbance.arrow_forwardWhich of the following are important biotic factors that can affect the structure and organization of an ecosystem? A)temperature, water B)nutrient availability, soil pH C)predation, competition D)precipitation, wind E)light intensity, seasonalityarrow_forward
- The major factors that make up the environment/ecosystems is/are? a. physical and chemical factors b. chemical c. biological d. physical, chemical and biologicalarrow_forwardChoose TWO (2) different types of ecosystem, in your surrounding area. The area can be in your yard or in your neighbourhood, which is easily accessible to you. a) the two types of ecosystems that can be identified during the observation b) abiotic and biotic factors in each ecosystem (FOUR examples ofinteractions).arrow_forwardEach species has a particular niche within a community. This niche is defined by which two sets of factors? a. Net primary productivity and physical environment b. Functional role and net primary productivity c. Net primary productivity and biological environment d. Physical environment and functional rolearrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning