A) A scientist tills a glass container with water and places an aquatic plant inside the container then closes the lid and places the container in direct sunlight. The scientist observes small bubbles on the surfaces of the plant's leaves on days 1 and 2, but no bubbles on day 3. The scientist concludes that the bubbles were caused by photosynthesis. Which substance shoul be added to the water in order for the bubbles to reappear? (1 point)
glucose
hydrogen gas
oxygen
carbon dioxide
The substance that should be added to the water in order for the bubbles to reappear is carbon dioxide.
A) ATP is (1 point)
stored during cellular respiration
released when carbon dioxide and water form glucose
a form of energy that cannot be stored
a form of energy that can be used and stored
A) ATP is a form of energy that can be used and stored.
A) ATP stores some of the energy from glucose molecules during cellular respiration. How is the remaining energy from these glucose molecules released? (1 point)
Excess carbon dioxide
Excess light
Excess heat
Excess water
The remaining energy from glucose molecules during cellular respiration is released as excess heat.
A) One molecule of glucose is recycled into respiration. (1 point) molecules of carbon dioxide during cellular
12
One molecule of glucose is recycled into 12 molecules of carbon dioxide during cellular respiration.
Is it 6, 12, 2, 1
Apologies for the confusion. One molecule of glucose is recycled into 6 molecules of carbon dioxide during cellular respiration.
A) Which role does photosynthesis play in the flow of energy? (1 point)
Photosynthesis is now plants break down glucose to use for energy.
Photosynthesis provides radiant energy to all the organisms in the entire food chain.
Photosynthesis allows plants to create energy for themselves to store and use for metabolism.
Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food
chain
The correct answer is: Photosynthesis converts radiant energy to chemical energy to be used by organisms in the food chain.
A) How does the carbon stored in the bodies of living organisms move into rocks? (p
CLiving organisms decay, releasing carbon into the soil, and soil is compacted into rocks
Carbon dioxide dissolves in ocean water and is slowly absorbed by rocks in the ocean.
Living organisms decay and become fossils fuels, which eventually become rocks.
Carbon dioxide released througn respiration dissolves in certain rocks, like amesione.
The movement of carbon stored in the bodies of living organisms into rocks primarily occurs through the process of living organisms decaying and becoming fossil fuels, which eventually transform into rocks.
The nitrogen cycle requires
animals
bacteria
plants
legumes
to convert nitrogen to nitrites and nitrate
The nitrogen cycle requires bacteria and legumes to convert nitrogen to nitrites and nitrates. Although animals and plants play a role in the nitrogen cycle, they are not directly involved in the conversion of nitrogen to nitrites and nitrates.
A) The three steps of the nitrogen cycle in order, starting with nitrogen gas in the atmosphere, are (1 point)
nitrogen fixation, denitrification, and nitrification.
nitrification, nitrogen fixation, and denitrification.
nitrogen fixation, nitrification, and denitrification.
denitntication, nitrication, and nitrogen nxation.
The three steps of the nitrogen cycle in order, starting with nitrogen gas in the atmosphere, are:
1. Nitrogen fixation
2. Nitrification
3. Denitrification
Therefore, the correct answer is: nitrogen fixation, nitrification, and denitrification.
A) How do energy and matter move in ecosystems? (1 point)
Energy flows in one direction, and matter cycles through the environment.
Matter flows in one direction, and energy cycles through the environment.
Energy and matter cycle through the environment.
Energy and matter flow in one direction.
The correct answer is: Energy flows in one direction, and matter cycles through the environment.
A) Which statement is true? (1 point)
Food webs are the best depictions or reeaing relationships because they snow 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 many ways that plants and animals are connected.
Food webs are the best depictions of feeding relationships because they show a single path for the flow of energy through an ecosystem.
The correct answer is: Food webs are the best depictions of feeding relationships because they show many ways that plants and animals are connected.
A) 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. (2 points)
The chemical equation for cellular respiration, 6O2 + C6H12O6 -> 6CO2 + 6H2O + energy, shows that plants cycle matter by taking in 6 molecules of oxygen and 1 molecule of glucose (C6H12O6) and producing 6 molecules of carbon dioxide (6CO2) and 6 molecules of water (6H2O), while releasing energy. This represents the conversion of organic matter (glucose) into inorganic matter (carbon dioxide and water), which can be used by other organisms and recycled within the ecosystem. The numbers of molecules and atoms involved in the equation demonstrate the cycling of matter through the process of cellular respiration in plants.
Less info please 🙏
The chemical equation for cellular respiration, 6O2 + C6H12O6 -> 6CO2 + 6H2O, shows that plants cycle matter by taking in 6 molecules of oxygen and 1 molecule of glucose and producing 6 molecules of carbon dioxide and 6 molecules of water. This demonstrates the conversion of organic matter (glucose) into inorganic matter (carbon dioxide and water) during cellular respiration.
A) In a food pyramid, there is typically less biomass at the top (ie., there are very few individual tertiary consumers, whereas there are numerous individual producers), in three five sentences, explain this phenomenon, citing evidence relating to energy flow and how plants support ecosystems. (4 points)
In a food pyramid, there is typically less biomass at the top due to the inefficiency of energy transfer between trophic levels. As energy flows through an ecosystem, it is lost at each level through various processes such as respiration, heat production, and incomplete digestion. This results in less energy being available for higher trophic levels.
Plants, as primary producers, support ecosystems by converting solar energy into chemical energy through photosynthesis. This process captures only a fraction of the available solar energy, leading to a limited amount of energy being stored in the plant biomass. As a result, there is a larger quantity of plant biomass compared to the biomass of consumers at higher trophic levels.
Furthermore, individuals at higher trophic levels require more energy to sustain themselves, leading to larger energy losses as it moves up the food chain. This can be observed through ecological pyramids, where each level represents a decrease in energy as well as biomass.
Additionally, organisms at higher trophic levels usually have larger energy requirements and need to consume a larger quantity of individuals from lower trophic levels to fulfill their energy needs. This further reduces the number of individuals at higher trophic levels.
Overall, the decreasing biomass at higher trophic levels in a food pyramid highlights the fundamental principle of energy transfer and the efficiency of energy flow in ecosystems.