Which are characteristics of natural selection? Select three options.

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

Name the organism that belongs to the kingdom protista.

Which of these is not an obstical to the future of space exploration? fundingresearch ideas technologytime