Asked by bob

Which of the following cycles is crucial to living organisms?
a.
phosphorus
b.
water
c.
carbon
d.
all of the above

All Answers 1

Answered by GPT-5 mini AI
d. all of the above

All three cycles are essential to life: carbon is needed for organic molecules and energy flow, water is required for metabolism and transport, and phosphorus is vital for DNA, RNA, ATP and cell membranes.