Question

in what ways is phosphorus important for living organisms? select 2 correct answers. a it is an important plant nutrient. b it is part of the dna structure. c it is needed to carry out chemical reactions in laboratories. d it generates brilliant colors during fireworks.

Explanation:

• Phosphorus is an essential plant nutrient as it is involved in many biological processes in plants like energy transfer (ATP contains phosphorus).
• DNA has a phosphate - sugar backbone. The phosphate group (containing phosphorus) is an important part of the DNA structure.
• Options C and D are about the use of phosphorus in non - biological (laboratory and fireworks) contexts, not its importance for living organisms.

Answer:

A. It is an important plant nutrient, B. It is part of the DNA structure