Can anyone answer this?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center

Which step is not included in the step approach to calculating the greatest common divisor?