Answer:
negative feedback helping to maintain homeostasis
Explanation:
Skeletal muscles are CELLS formed by skeletal muscle tissue, and the tissue is made up of skeletal muscle ORGANS. Hope that helps :)
Answer: Choice D
Explanation: Natural selection explains how the strong survive due to mutations to suit the environment.
That are used to prevent the growth of specific microbes or it simply lacks be calibrated to a viable cell count to express microorganisms as CFU/ml, CFU stands for Colony Forming Units, a microbiology term used to quantify how unit-cfu-colony-forming-unit-cfu-ml-cfu-g-cell-count-microbial- counting.