What are the two parts of an ecosystem? organisms and their food

organisms and the physical environment

temperature and organism's food

the physical environment and the temperature

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

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

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis