Environmental resistance is environmental factors such as: droughts and competitions. It can restrict the biotic potential of organisms and not let them increase. Droughts and competition can both cause death thus decreasing the population of the organisms.
Which of the following is a form of environmental resistance?
Environmental resistance factors are things that limit the growth of a population. They include biotic factors – like predators, disease, competition, and lack of food – as well as abiotic factors – like fire, flood, and drought.
Which of the following defines the biotic potential of a species quizlet?
The biotic potential of an organism is the maximum number of offspring that can be produced in ideal conditions; it depends on the number of offspring produced at one time and the number of times that a female can produce offspring during her lifetime.
Which is a true statement regarding nutrients and energy in an ecosystem?
Which is a true statement regarding nutrients and energy in an ecosystem? Nutrients cycle within an ecosystem whereas energy moves through in a continuous one-way flow.
Which of the following becomes more important as the population density increases?
Some limiting factors (Density-dependent) become more important as a population’s density increases because, for instance, in a dense population, parasites and diseases can spread more easily, resulting in higher death rate.
What is an environmental resistance?
Definition of environmental resistance
: the sum of the environmental factors (such as drought, mineral deficiencies, and competition) that tend to restrict the biotic potential of an organism or kind of organism and impose a limit on numerical increase.
What is biotic potential and environmental resistance?
Biotic potential refers to the ability of a population of a particular species to propagate under ideal environmental conditions — sufficient food supply, no diseases, and no predators. … Environmental resistance are factors that limit the biotic potential of an organism. It includes abiotic and biotic factors.
Which of the following defines the biotic potential of a species?
Biotic potential is described by the unrestricted growth of populations resulting in the maximum growth of that population. Biotic potential is the highest possible vital index of a species; therefore, when the species has its highest birthrate and lowest mortality rate.
What is determined by biotic potential?
biotic potential, the maximum reproductive capacity of an organism under optimum environmental conditions. … Full expression of the biotic potential of an organism is restricted by environmental resistance, any factor that inhibits the increase in number of the population.
Which of the following impacts an organism’s biotic potential?
Biotic potential is the ability of a population of living species to increase under ideal environmental conditions – sufficient food supply, no predators, and a lack of disease. An organism’s rate of reproduction and the size of each litter are the primary determining factors for biotic potential.
How do nutrients and energy move through ecosystems quizlet?
How does energy and nutrients flow/cycle through ecosystems? Organisms capture energy, and transform it to biomass and/or heat. … Ultimately, all is lost as heat, along the way, it may reside in energy rich compounds. Primary producers make biological tissues using inorganic molecules (own food).
What is the main source of energy in an ecosystem Why?
The vast majority of energy in food webs originates from the sun. Energy is not recycled in ecosystems and each ecosystem requires a continuous input of energy to sustain it.
What are two nutrients that are recycled through an ecosystem?
Elements such as carbon, nitrogen, oxygen, and hydrogen are recycled through abiotic environments including the atmosphere, water, and soil.
Which of the following factors affecting population growth is density-dependent?
Density-dependent factors include disease, competition, and predation. Density-dependant factors can have either a positive or a negative correlation to population size. With a positive relationship, these limiting factors increase with the size of the population and limit growth as population size increases.
What type of effect has an increasing impact as the population size increases?
|Term As of 2008, approximately how many humans live on the earth?||Definition 6 billion|
|Term What may happen when a population exceeds its carrying capacity?||Definition Both a) and d) are possible.|
|Term What type of effect has an increasing impact as the population size increases?||Definition density-dependent effect|
What are the 3 types of population growth?
And while every population pyramid is unique, most can be categorized into three prototypical shapes: expansive (young and growing), constrictive (elderly and shrinking), and stationary (little or no population growth).