Question

1. why is phosphorous a necessary nutrient for all living things? (select 2 correct answers.)(2 points) it is found in every cell in the human body needed for growth and repair for tissues and cells. phosphorus has moisture - absorbing properties. plants depend on phosphorous in order to grow; therefore, phosphorous is a key ingredient in fertilizers. phosphorous is used in fracking - it props open the fractures within the rock.

Explanation:

1. Analyze the first option: Phosphorus is a component of cell structures (like phospholipids in cell membranes, nucleic acids like DNA/RNA) and is essential for cell growth, repair, and metabolic processes. So "It is found in every cell in the human body needed for growth and repair for tissues and cells" is correct.
2. Analyze the second option: Phosphorus does not primarily function due to moisture - absorbing properties in the context of being a nutrient for living things. So this is incorrect.
3. Analyze the third option: In plants, phosphorus is crucial for processes like photosynthesis, energy transfer, and growth. So it is a key component of fertilizers to support plant growth. "Plants depend on phosphorous in order to grow; therefore, phosphorous is a key ingredient in fertilizers" is correct.
4. Analyze the fourth option: The use of phosphorus in fracking is an industrial application, not related to it being a nutrient for living things. So this is incorrect.

Answer:

A. It is found in every cell in the human body needed for growth and repair for tissues and cells.
C. Plants depend on phosphorous in order to grow; therefore, phosphorous is a key ingredient in fertilizers.