Some bacteria living in the ocean floor can turn methane (a gas) into food. How would you classify these bacteria? A. producers
B. consumers
C. decomposers
D. both consumers and decomposers

*will mark brainliest* which of the following best describes a viral infection, such as the common cold? a. virus grow and develop in the body. b. virus are living organisms. c. viruses require host cells in the body. d. viruses can be treated with antibiotics.

Which of the following is a macronutrient? carbohydrates lipids amino acids all of the above

When does the circulatory system work with the respiratory system? a. during blood cell formation b. during cellular respiration c. during intestinal digestion d. during a viral infection