Question

animals, including people, have microorganisms living in their stomach and intestines. even when you are not sick, you have trillions of microorganisms inside your body!
these microorganisms, such as bacteria and yeast, can break down food into small nutrient particles. both the animal and the microorganisms can absorb the particles.
animals have many microorganisms living inside their digestive system. which of the following statements is true?
animals use nutrient particles only for energy, and the microorganisms use nutrient particles only for building material.
both animals and microorganisms use nutrient particles for energy and building material.
animals use nutrient particles only for building material, and the microorganisms use nutrient particles only for energy.

Explanation:

To determine the true statement, we analyze the role of nutrient particles. All living organisms (including animals and microorganisms like bacteria/yeast) need nutrients for both energy (to perform life processes) and building material (to grow, repair, and maintain cells). The first and third options incorrectly limit the use of nutrients to only one purpose (energy or building material) for either animals or microorganisms. The second option correctly states that both use nutrient particles for energy and building material.

Answer:

B. Both animals and microorganisms use nutrient particles for energy and building material. (Note: Assuming the options are labeled as A, B, C with the second option being B as per the content. If the original options had different labels, adjust accordingly, but based on the text, the correct statement is the one saying both use nutrients for energy and building material.)