I believe the last option is the correct one for the illustration of the single celled organism provides and the environment that it is found living in.
The melting of the ice caps makes Earth warmer because less solar energy is reflected due to loss of Albedo
Scientific models must be able to generate PREDICTIONS.
Scientific models refers to frameworks, which are used to elucidate and predict the behavior of an object or a system. Scientists usually use models to carry out research and to explain the results of their research. A good and effective scientific model should be able to make accurate predictions.
Aerobic respiration is producing of cellular energy involving oxygen.
Anaerobic respiration is respiration using electrons through molecular oxygen.
