Diffusion is the spontaneous movement of gases, without the use of any energy or effort by the body, between the gas in the alveoli and the blood in the capillaries in the lungs. Perfusion is the process by which the cardiovascular system pumps blood throughout the lungs.
break the cells open to collect the dna.
seperate the dna from proteins and cellular debris.
precipitate the dna with an alcohol.
clean the dna.
look at the concentration and quality of the dna.
Answer:
The scientist's conclusion is most likely unreliable because he just interviewed people watching movies in the theatre. He should have interviewed an equal number of people from the theatre and from home to get reliable results. According to the scientific method for designing an experiment, the experiment or survey conducted by scientists is not correct. Hence, the scientist's conclusion is wrong because his method of experimentation was wrong.
Answer:
Fiber
Explanation:
Fiber is one kind of carbohydrate which is indigestible by the body. Fiber is a part of plant foods which is not digestible for our body.
Maximum surface area allows the cells for maximum exchange of nutrients and water with the environment. This exchange with the environment is not visible if the volume of the cells is higher. Therefore a high ratio of surface area to volume benefits a cell.
