Answer please

The last option that isn’t showing is Musculoskeletal, Nervous

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Cells tend to have a relatively small and uniform size. why aren’t cells larger?

Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis