Mathematics is the study of quantity, space, structure of a concerned entity or population size. A scientific experiment may be based on the analysis of variables must be having large sample size. Therefore, quantitative estimation of the results is required. Hence, a scientist requires mathematics to interpret the results of a scientific experiment.
A scientist who is evaluating the result of any scientific experiment must have a good understanding of mathematics or statistics. All the scientific experiments incorporates mathematics /statistics to nullify or prove their assumed hypothesis. Therefore, the end results of such experiments are in terms of some numbers derived through integration of some advanced mathematical tool or theory. Experiments with quantitative end result definitely require mathematical understanding of an evaluator. However, for experiments with qualitative end result also require mathematical understanding of an evaluator as even the qualitative end results are backed by mathematical formulations, theories and concepts
Productivity is refers to the rate of generation of biomass in an ecosystem. The difference between net and gross productivity is that gross productivity is is the overall rate of energy capture while net productivity is is lower, adjusted for energy used by organisms in respiration/metabolism.
ATP contains less energy and is used to power cell processes. The flow of energy through living things begins with photosynthesis, which creates glucose. In a process called cellular respiration, organisms' cells break down glucose and make the ATP they need.