answer:Epidemiology is the study of the distribution and determinants of health-related states or events in specified populations, and the application of this study to the control of health problems (1). Key terms in this definition reflect some of the important principles of epidemiology.
Answer:
food webs
Explanation:
Food webs are models that demonstrate how matter and energy is transferred between producers, consumers, and decomposers as the three groups interact within an ecosystem. ... Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environ
One hypothesis that is in the scientific community which relates to the origin of the building blocks for life is that they were formed when lightning struck water.
A biotic factor is a living thing that has an impact on another population of living things or on the environment. Abiotic factors do the same thing, but they are non-living. Together, biotic and abiotic factors make up an ecosystem. To survive, biotic factors need abiotic factors.