What is an observational study? How is it different from a controlled experiment?

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water

Why is carbon the backbone of liveing things

Which of the following statements about fungi are true? check all that are true. fungi get food through the process of photosynthesis. fungi get food by absorbing it from their environment. fungi can be unicellular or multicellular. fungi typically grow in hot, dry environments.