Why does a vegetarian Human leave a smaller ecological footprint than an omnivore human?
Why does a vegetarian leave a smaller ecological footprint than an omnivore? … – Vegetarians need to ingest less chemical energy than omnivores. – Eating meat is an inefficient way of acquiring photosynthetic productivity. – There is an excess of plant biomass in all terrestrial ecosystems.
Why does a vegetarian leave a smaller ecological footprint than a person who eats meat quizlet?
Why does a vegetarian leave a smaller ecological footprint than an omnivore? … Vegetarians need to ingest less chemical energy than omnivores. There is an excess of plant biomass in all terrestrial ecosystems. Eating meat is an inefficient way of acquiring photosynthetic productivity.
Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystem?
Which of the following is primarily responsible for limiting the number of trophic levels in most ecosystems? Decomposers compete with higher-order consumers for nutrients and energy.
Which of the following ecosystems would you expect to have the highest primary productivity?
The highest net primary productivity in terrestrial environments occurs in swamps and marshes and tropical rainforests the lowest occurs in deserts.
Why is terrestrial productivity higher in equatorial climates?
Why is terrestrial productivity higher in equatorial climates? –Productivity increases with water availability. -Productivity increases with available sunlight. … Acid precipitation lowered the pH of soil in a terrestrial ecosystem that supported a diverse community of plants and animals.
Which of the following is an example of an ecosystem?
Examples of ecosystems are: agroecosystem aquatic ecosystem coral reef desert forest human ecosystem littoral zone marine ecosystem prairie rainforest savanna steppe taiga tundra urban ecosystem and others.
Why do populations grow more slowly as they approach their carrying capacity?
Why do populations grow more slowly as they approach their carrying capacity? Density-dependent factors lead to fewer births and increased mortality. … Sometimes INTRINSIC FACTORS cause the population to increase in mortality and lower reproduction rates to occur in reaction to the stress of overpopulation.
What is restoration ecology Why is it an important scientific pursuit in todays world?
Why is it an important scientific pursuit in today’s world? Restoration ecologists research the historical conditions of ecological communities as they existed before human alterations and then they devise ways to restore these altered areas to their earlier condition.
Which habitat covers the largest area?
Grasslands– The largest land habitat by area grasslands are dominated by hardy quick growing grasses and large herds of grazing animals.
Which of the following best explains why there are typically five or less trophic levels in a food chain?
Which of the following best explains why there are seldom more than five trophic levels in a food chain? Energy is lost from each trophic level.
What is the minimum number of trophic levels an ecosystem must have to survive?
Ecological pyramids can demonstrate the decrease in energy biomass or numbers within an ecosystem. All food chains and webs have at least two or three trophic levels. Energy is passed up a food chain or web from lower to higher trophIC levels.
What is the primary limiting factor for aquatic primary production?
The availability of nutrients for primary producers has long been thought to be the main limiting factor for primary productivity in nutrient-poor lake ecosystems.
Which of the following is an example of an ecosystem where productivity is high?
The world’s ecosystems vary tremendously in productivity as illustrated in the following figures. In terms of NPP per unit area the most productive systems are estuaries swamps and marshes tropical rain forests and temperate rain forests (see Figure 4).
Which aquatic ecosystem would you expect to have the highest primary production?
In terrestrial ecosystems primary productivity is highest in warm wet places with plenty of sunlight like tropical forest regions. In contrast deserts have the lowest primary productivity. In marine ecosystems primary productivity is highest in shallow nutrient rich waters such as coral reefs and algal beds.
What is caused by excessive nutrient runoff into aquatic ecosystems?
This process is also known as eutrophication. Excessive amounts of nutrients can lead to more serious problems such as low levels of oxygen dissolved in the water. Severe algal growth blocks light that is needed for plants such as seagrasses to grow.
Why do toxins accumulate at such high levels in carnivores?
Why do toxins accumulate at such high levels in carnivores? The biomass at any given trophic level is accumulated from a much larger toxin-containing biomass ingested from the level below. Because they are at the top of the energy pyramid they eat the most food and so accumulate the most toxins.
Why is energy lost when herbivores eat primary producers?
Most organisms feed at several trophic levels. Why is energy lost when herbivores eat primary producers? … Longer chains are less stable and energy transfer between trophic levels is inefficient.
Why do logged tropical rain forest soils typically have nutrient poor soils?
54) Why do logged tropical rain forest soils typically have nutrient-poor soils? … Logging results in soil temperatures that are lethal to nitrogen-fixing bacteria.
What are the 3 main ecosystems?
There are three broad categories of ecosystems based on their general environment: freshwater ocean water and terrestrial.
Is the ocean an ecosystem?
Is a pond an ecosystem?
Pond and Lake Ecosystems
A pond or lake ecosystem includes biotic (living) plants animals and micro-organisms as well as abiotic (nonliving) physical and chemical interactions. Pond and lake ecosystems are a prime example of lentic ecosystems.
How does population growth affect the carrying capacity of an ecosystem?
We alter carrying capacity when we manipulate resources in a natural environment. If a population exceeds carrying capacity the ecosystem may become unsuitable for the species to survive. If the population exceeds the carrying capacity for a long period of time resources may be completely depleted.
What are the factors affecting population growth?
Population Growth Rate
The two main factors affecting population growth are the birth rate (b) and death rate (d). Population growth may also be affected by people coming into the population from somewhere else (immigration i) or leaving the population for another area (emigration e).
How would the population growth affect the carrying capacity?
Carrying capacity is determined by the amount of available resources (food habitat water). … If the population grows indefinitely less and less resources will be available to sustain the population.
What factors most strongly influence the type of biome?
Terrestrial biomes’ distributions are most strongly influenced by climate which can be summarized in a climate diagram of average monthly temperature and precipitation. Water temperature depth salinity dissolved nutrients wave action currents and type of substrate shape aquatic ecosystems’ distributions.
What is the reconstruction of ecology?
What type of organisms are most often considered keystone species?
The type of organism that is most often considered a keystone species are apex predators. Apex predators are the top predators in the food chain and…
Why can a zoo not be a habitat of a tiger?
Ok so first of all…. a zoo cannot be a habitat of a tiger because it cannot survive in that nature …. like a tiger is used to the fact that it lives in a forest so it wouldn’t feel the same if the tiger lives in the zoo since it is also locked up and cannot roam around freely ….
Who discovered biomes?
Frederick Clements
The term biome was born in 1916 in the opening address at the first meeting of the Ecological Society of America given by Frederick Clements (1916b). In 1917 an abstract of this talk was published in the Journal of Ecology. Here Clements introduced his ‘biome’ as a synonym to ‘biotic community’.Nov 27 2018
Why do animals prefer to live in their natural environment?
Animals and plants need food water and shelter in their habitat. Animals also need a safe place to have their young (babies) and to hide from predators and escape from other danger. Let’s look at some more of the reasons why animals need a habitat.
Why do food chains rarely exceed 4 trophic levels?
Energy is passed up a food chain or web from lower to higher trophic levels. However generally only about 10 percent of the energy at one level is available to the next level. … This loss of energy explains why there are rarely more than four trophic levels in a food chain or web.
Why are there fewer organisms less biomass at the top of the trophic pyramid than at the bottom?
Energy that is lost to heat must be replaced by more energy. … There are usually fewer organisms at the top pyramid levels because there is much less energy available.
Why are there less organisms in higher trophic levels?
Thus as we move to higher trophic levels we will generally speaking see larger animals. And yet moving to higher trophic levels these larger animals need to live on smaller energy production from the next trophic level down. As a result there will usually be fewer animals at higher trophic levels.
Why does the population size decrease as you move up the food chain?
Explain. The population size decreases because the higher on the food chain one looks the fewer the number of organisms that occupy that level. This is because of the energy that is available from one level to the next has to decrease since it is used for life’s process.
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