describe the benefits and drawbacks of experiments in a laboratory compared with experiments in a natural setting

Experimental set up in the lab.are under the control of the scientist,therefore they can manoeuvre  the the surrounding  conditions to suit the experimental set up for best results. In addition the lab.environment does not involve the complex  interactions or reaction between the set up and   the lab. environments, compare to the natural environment.

Natural experimental set up gives accurate results  from the interaction of the organisms(e.g animals) under investigation in the natural environments,thus the results obtained are natural  interaction of the organisms based on the environmental factors  the organism are exposed to.However, the number of organisms are usually large,and therefore great effort is needed to determine the actual cause and effects of the factors affecting the organisms under investigations in this natural environments.

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

there is not 1 highest source of protein, but there are many; meats, fish, poultry, seafood, cheese, eggs, yogurt and milk. the only non complete animal food that is beneficial is gelatin.

sorry if this did not , have a great day!