Which Of The Following Statement Is True Regarding The Energy Flow Model? On average, only about 10 percent of energy stored as biomass in a trophic level is passed from one level to the next. This is known as “the 10 percent rule” and it limits the number of trophic levels an ecosystem can support.
What Is The Most Important Part Of An Ecosystem? Soil is one of the most important elements of an ecosystem, and it contains both biotic and abiotic factors. The composition of abiotic factors is particularly important as it can impact the biotic factors, such as what kinds of plants can grow in an ecosystem. Is
What Do Organisms And Populations Compete Over? What Do Organisms Compete For? Organisms compete for the resources they need to survive- air, water, food, and space. In areas where these are sufficient, organisms live in comfortable co-existence, and in areas where resources are abundant, the ecosystem boasts high species richness (diversity). What do organisms and
What Was Missing From The Bottom Up Explanation? This “bottom up” explanation suggests that every trophic level is regulated by the level below it. The bottom-up explanation did not explain why herbivore populations do not grow large enough to eat all the producers. What is the bottom-up hypothesis? The bottom-up control is driven by the
How Are Carbon Oxygen And Nitrogen Cycled In Ecosystems? Carbon, nitrogen, hydrogen, oxygen, phosphorus, and sulfur are conserved and recycled in the atmosphere, on land, in water, or beneath the earth’s surface. Materials are recycled via erosion, weathering, water drainage, and the movement of tectonic plates. How are carbon and nitrogen cycled through an ecosystem?
Are All Species Equal In An Ecosystem? Are all species equal in an ecosystem? False. Some members of a food web can have effects that are disproportionate to their abundance. For example, keystone species have small populations, but because of what and how much they consume, their absence from the food web could have very
How Are Atoms Cycled Through An Ecosystem? The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem. Food webs model how matter and energy are transferred among producers, consumers, and decomposers as the three groups interact within an ecosystem. What are the 3
How Do Plants Affect The Global Carbon Cycle? Green plants play a very important role in the carbon cycle. They absorb carbon dioxide (CO2) from the atmosphere and produce carbon-containing sugars. This process is called photosynthesis. How do plants help balance the carbon cycle? Plants release oxygen into the atmosphere during photosynthesis while respiration by
Are All Organisms Helpful In The Environment? Are all organisms helpful in the environment? In its life and reproduction, every organism is shaped by, and in turn shapes, its environment. Ecological scientists study organism-environment interactions across ecosystems of all sizes, ranging from microbial communities to the Earth as a whole. Does every animal help the
How Carbon Cycles Through Eco? On the short time scale, the carbon cycle is most visible in life. Plants on land and in the ocean convert carbon dioxide to biomass (like leaves and stems) through photosynthesis. The carbon returns to the atmosphere when the plants decay, are eaten and digested by animals, or burn in