11 of 1411 of 14 Items
Question
Which statement is true?(1 point)
Responses
Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food chains are the best depictions of feeding relationships because they show a simplified path for the flow of energy through an ecosystem.
Food chains are the best depictions of feeding relationships because they show a simplified path for the flow of energy through an ecosystem.
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
Food chains are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
Food chains are the best depictions of feeding relationships because they show a simplified path for the flow of energy through an ecosystem.
In one or two sentences, explain how the chemical equation for cellular respiration shows that plants cycle matter. Include the numbers of molecules and atoms involved to support your explanation
In one or two sentences, explain how the chemical equation for cellular respiration shows that plants cycle matter. Include the numbers of molecules and atoms involved to support your explanation ?
The chemical equation for cellular respiration shows that plants cycle matter by taking in carbon dioxide (CO2) and water (H2O), along with oxygen (O2), to produce glucose (C6H12O6) and release oxygen as a byproduct, thereby cycling both carbon and oxygen atoms.
In a food pyramid, there is typically less biomass at the top (i.e., there are very few individual tertiary consumers, whereas there are numerous individual producers). In three to five sentences, explain this phenomenon, citing evidence relating to energy flow and how plants support ecosystems.
The phenomenon where there is less biomass at the top of the food pyramid is due to energy flow. As energy is passed along the food chain, much of it is lost between trophic levels, resulting in less energy being available to support higher level consumers. Additionally, plants support ecosystems by capturing energy from the sun through photosynthesis. As plants are the primary producers in most ecosystems, they form the basis of the food pyramid, providing energy and biomass to the rest of the ecosystem. This is why there are typically more individual producers than tertiary consumers.
In a food pyramid, there is typically less biomass at the top (i.e., there are very few individual tertiary consumers, whereas there are numerous individual producers). In three sentences, explain this phenomenon, citing evidence relating to energy flow and how plants support ecosystems.
The phenomenon of less biomass at the top of the food pyramid is due to energy loss as it is transferred between trophic levels. As energy is passed up from lower trophic levels to higher ones, only around 10% is transferred, with the remainder being lost due to respiration, excretion, or heat. Additionally, as primary producers, plants form the base of the food pyramid, and all other organisms directly or indirectly depend on them for their energy needs, resulting in a larger number of individual producers than tertiary consumers.
Ocean ecosystems are sensitive to the chemical composition of the water. Any excess compounds can upset the balance and cause damage to organisms. In three sentences, describe how reducing consumption of fossil fuels can help the ocean ecosystem.
Reducing consumption of fossil fuels can help the ocean ecosystem by decreasing the amount of carbon dioxide released into the atmosphere. When carbon dioxide dissolves in seawater, it reacts with water molecules to form carbonic acid, which increases the acidity of seawater. This can upset the chemical balance of the ocean, harming organisms like corals and shellfish. By reducing carbon dioxide emissions, we can help to mitigate this issue and prevent harm to the ocean ecosystem.
