Question

number correct 6 number incorrect 0 which of the following statements is true about energy and matter? a. matter is cycled in ecosystems but energy flows one way. energy from the sun is passed through the food chain and ultimately dissipates as heat. b. energy is cycled in ecosystems but matter flows one way. matter from the sun is passed through the food chain and ultimately dissipates as heat. c. energy is critical to ecosystems, but matter is not necessary. d. both b and c click to choose your answer below: a b c d you are using the free version of this game (with ads). if you want to use the ad - free member version, click the button below. please note: this will open in a new tab/window! please save your progress before proceeding!

Explanation:

• Option A: Matter is cycled (e.g., carbon cycle, nitrogen cycle) in ecosystems. Energy from the sun is captured by producers (photosynthesis), passed through the food chain (herbivores eat producers, carnivores eat herbivores), and at each trophic level, energy is lost as heat (due to metabolic processes like respiration). So energy flows in one - way (sun → producers → consumers → heat loss).
• Option B: Energy does not cycle. It is constantly input from the sun and lost as heat. Matter does not flow one - way; it recycles. So this option is incorrect.
• Option C: Matter is necessary for ecosystems. Organisms are made of matter (e.g., cells have organic and inorganic matter). So this option is incorrect.
• Option D: Since B and C are incorrect, this option is also incorrect.

Answer:

A. Matter is cycled in ecosystems but energy flows one way. Energy from the sun is passed through the food chain and ultimately dissipates as heat.