When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the C. experimental. Experimental variables are the things you are studying in the experiment and it is the only variable you can change.
Answer:
The term living refers to a thing or things that once was living or was and passed and non living thing is anything that was never alive basically was just their but couldn't do such mover or talk ex:in order for somthing to be classified as living must grow and develop and use energy and reproduce be made up of cells respond to its environment and adapt to living things easier to understand when seeing them in person but thats the answer let me know if I helped peace ✌ ☺
Answer:
Walls are thin.
Inner surface is moist.
Tissues are filled with blood vessels.
Exposed to air
Explanation:
