Which of the following is a density-independent limiting factor? O A. Resource competition O B. Invasive species OC. Climate O D. Disease and parasites

Q: According to the island equilibrium model, species richness would be greatest on an island that isa)…

A: It refers to the number of species in an area or a community.

Q: Which statement about zero population growth isoclines of two competing species is true?     A.…

A: Competition occurs due to the unavailability of a particular resource between the species. It is of…

Q: For each of the following statements about a keystone species, select true or false. 1. Keystone…

A: A keystone species is a species that has an extensive effect on an ecosystem even though their…

Q: Which of the following is not true of a population of largepredators in a small reserve?a. The…

A: In a predator-prey relationship, the organism that feeds upon the other is called a predator, while…

Q: In population ecology, which of the following would increase N? O emigration density dependence…

A: Population size is basically number of individuals which are present at particular sphere . It is…

Q: The figure shows three species of beetles (A, B, C) that live on an island together. Which of the…

A: Introduction Beetles Belong To The Coleoptera Order, Which Is Part Of The Endopterygota Superorder.…

Q: The total number of species present in a community is called the   a. species evenness.   b.…

A: A community is a group of organisms living in the same place or having a particular characteristic…

Q: Character displacement is likely to the competition coefficients in two competing species and to…

A: Competition exists when the resources are inadequate to meet the demands of the population and this…

Q: When is logistic growth similar to exponential growth? Choose All That Apply When K is large O When…

A: The study of population abundance and its changes with time is referred to as population ecology.…

Q: According to the competitive exclusion principle,a. one species is always more competitive than…

A: Answer is c)  no two species can occupy the same niche at the same time.

Q: If a group of predators is added to a community with a population of prey that is growing…

A: Populations reach the carrying capacity (K) of their environment as competition grows and resources…

Q: When r is a positive number, the population size is (a) stable (b) increasing (c) decreasing (d)…

A: The population size in an ecosystem is affected by four important factors: immigration, immigration,…

Q: ne biotic potential (r) of a species will; Rise when there is an increase in food O Remain constant…

A: Biotic potential is the ability of a population of living species to increase under ideal…

Q: Which of the following could qualify as a bottom-up control on a grassland community? (A) limitation…

A: Ecosystem: It is a collaboration of living organisms such as plants and animals with non-living…

Q: Which of the following would be considered density-independent factors that could affect the growth…

A: Density  independent factors are those factors which are independent on the density of the…

Q: Density-independent factors affecting population abundance include: O a. Pathogens. Ob. Predation.…

A: Limiting factors are those environmental conditions that control the population growth rate. They…

Q: Which statement about zero population growth isoclines of two competing species is true? A. Species…

A: Isocline is a line joining points on a graph of points of equal gradient or inclination at that…

Q: A keystone species is one whose removal from a community causes extinction of other species. How…

A: Keystone Species - It is also known as Ecological Engineers. These species play unique role in the…

Q: Conservationists will take snow geese off the endangered species list when the population hits…

A: The unlimited resources are found in exponentially and continuously growing species.

Q: Which of the following factors can affect carrying capacity? O a. Population size O b. Human…

A: Carrying capacity refers to the maximum number, density, or biomass of people that a certain area…

Q: When coyotes were removed from the community in Texas, several species of rodent disappeared while…

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

Q: Inplants, “self-thinning” refers to reduction in:a.the biomass of an individual in response to…

A: BASIC INFORMATION  COMPETITION  In an ecosystem if there are two different species then there is…

Q: The carrying capacity of a species is. O a The minimum number for the species to survive. Ob…

A: An ecosystem is a geographical section of living (biotic) and non-living(abiotic) factors…

Q: What is a community? O it describes how energy moves among species and the ecosystem O it describes…

A: The word ecology comes from two words :-  Eco means environment  Logos means to learn  Levels of…

Q: Which of the following could qualify as a top-down control ona grassland community?(A) limitation of…

A: In an ecosystem, there are two types of controls on a population. The bottom-up control is the…

Q: The process of species replacement over time in a community is called (a) global climate change. (b)…

A: Answer is option B.) Succession.

Q: Why do moderate levels of disturbance result in an increase in community diversity?a) The resulting…

A: Ecological succession is a gradual process that happens in the environment and  in a given species…

Q: Periodicincreases and decreases in red kangaroo populations in Australia are…

A: The red kangaroo is the largest kangaroo and the terrestrial mammal. It is present in mainland…

Q: Which of the following would be an abiotic environmental influence on a species? O a. predation а. O…

A: In ecology, biotic and abiotic factors include all living and non-living components of the…

Q: The part of the non-farm sector that uses agricultural output as an input is example of Select one:…

A: Non-farm sector refers to the sector of production industry which are not directly related to any…

Q: Species with a capacity for a high rate of population growth are called o-selected species O…

A:

Q: It is living components in an environment and may include food sources and other populations. A)…

A: An ecosystem is defined as a community of living and non-living things that work together to form a…

Q: Which limiting factor would affect the carrying capacity for all species in the pictured ecosystem?…

A: Limiting factor that would affect the carrying capacity for all species in the pictured ecosystem is…

Q: Predators that are keystone species can maintain species diversity in a community if theya) reduce…

A: Generally, predators consume prey with broader impacts on communities as a whole. It helps to…

Q: Which of the following is true of overexploitation? Select ALL that apply.   a Only animals are…

A: Overexploitation is the exploitation of a resource to the point of depletion. It occurs when the…

Q: Which of the following is not a sustainable fishing solution? O Limit the number of fish that can be…

A: Introduction Fishing is a form of agriculture, It is the capture of aquatic organisms in marine,…

Q: Why would you not want to harvest to a point where salmon populations are kept close to K? O It…

A: Carrying capacity  Carrying capacity is the limit of a population. After which the growth rate of…

Q: The relative abundance of any one species within a community of many species is known as   a.…

A: The natural world is made up of two important components- biotic and biotic. The living organisms…

Q: In the Lotka-Volterra equations for predator (P) and prey (V) population sizes, shown below, what…

A: Carrying capacity is the average number of population size for a particular species in a particular…

Q: Red and gray squirrels actively fight over tree space for nest building in my backyard. Injuries…

A: Individuals from different species compete against one another. Intraspecific competition occurs…

Q: When would it be appropriate to conduct an exclusion experiment? O When studying how one species…

A: The competitive exclusion or the Gause principle in biology is very much important for competitive…

Q: Populations that have reduced variation in their vital rates in response to increasing environmental…

A: Environmental factors have a severe direct and indirect role in the growth, development, and…

Q: High А В C Which letter best represents a keystone species? E Low Low High Relative abundance and…

A: Key stone species It is a species that has a disproportionately large effect on its natural…

Q: Which of these is not an abiotic factor that effects population dynamics? a) dispersal b)…

A: Group of organisms of the same species living together with an common area at the same time is known…

Q: Looking at the graph below: Which environmental factor could have caused the change indicated at the…

A: Population refers to a group of organisms belonging to same group or species that live in a specific…

Q: Marie studies how resource competition influences the coexistence of two predators. Marie studies…

A: Option a is incorrect because the ecosystem is the system where biotic elements and abiotic elements…

Q: An ecologist studying several forest dwelling, insect eating bird species does not find any evidence…

A: Individuals in the community interact with each other and the non-living components of their…

Q: to be sustainable, the total ecological footprint of an area’s population must be smaller than the…

A: Introduction:- Ecological footprint describes the effect of human population on the environment as…

Communities and Ecosystems

Ecology contains two words: Eikos means dwelling, and logy means to study, so the combined meaning is studying habitat or living.