Question

2 which four nutrients cycle through all of earths spheres and organisms? the carbon cycle for questions 3 - 5, write true if the statement is true. if the statement is false, replace the underlined word or words to make the statement true. write your changes on the line. 3 only a producer can use the suns energy or chemical energy to make food. 4 the products of photosynthesis are oxygen and carbon dioxide. 5 bacteria, fungi, and other organisms that break down waste are called consumers. 6 why is cellular respiration important for life on earth? 7 what impact do humans have on the carbon cycle? 8 why do scientists think there is an undiscovered carbon sink somewhere? the phosphorus cycle 9 why is phosphorus important to living things?

Explanation:

1. Producers are the only organisms that can perform photosynthesis or chemosynthesis to make food from sunlight or chemical energy. So the statement is True.
2. The products of photosynthesis are oxygen and glucose, not carbon - dioxide. So the statement is False. The corrected statement should be "The products of photosynthesis are oxygen and glucose."
3. Bacteria, fungi, and other organisms that break down waste are called decomposers, not consumers. So the statement is False. The corrected statement should be "Bacteria, fungi, and other organisms that break down waste are called decomposers."
4. Cellular respiration is important for life on Earth because it releases energy stored in glucose in the form of ATP, which is used for various cellular processes such as growth, repair, and movement.
5. Humans impact the carbon cycle in several ways. Deforestation reduces the number of plants that can absorb carbon - dioxide through photosynthesis. Burning of fossil fuels releases large amounts of carbon - dioxide into the atmosphere, contributing to global warming.
6. Scientists think there is an undiscovered carbon sink somewhere because the amount of carbon - dioxide emissions into the atmosphere is not fully accounted for by known carbon - absorbing processes and sinks such as the oceans and forests.
7. Phosphorus is important to living things as it is a key component of DNA, RNA, ATP, and cell membranes. It is also involved in energy transfer and storage in cells.

Answer:

1. True
2. False; The products of photosynthesis are oxygen and glucose.
3. False; Bacteria, fungi, and other organisms that break down waste are called decomposers.
4. It releases energy stored in glucose in the form of ATP for various cellular processes.
5. Deforestation reduces carbon - absorbing plants and burning of fossil fuels releases more carbon - dioxide.
6. The amount of carbon - dioxide emissions is not fully accounted for by known sinks.
7. It is a key component of DNA, RNA, ATP, and cell membranes and is involved in energy transfer and storage.