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Patterns and processes of evolution. How evolution and natural selection are reflected in the similarities and differences of organisms. 

The two YouTube videos provide an indication of the differences in dairy farming between Tanzania and South Australia.

• The first YouTube video elaborates on a few of the achievements that resulted from the implementation of the Tanzania livestock master plan between 2017/18 - 2021/22
• The second YouTube video provides some insight into the dairy industry in South Australia

This YouTube video delves into the impact that tourism can have on a country's economy.

This YouTube video delves into the impact that tourism can have on the environment.

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. Transfers of matter into and out of the physical environment occur at every level. Decomposers recycle nutrients from dead plant or animal matter back to the soil in terrestrial environments or to the water in aquatic environments. The atoms that make up the organisms in an ecosystem are cycled repeatedly between the living and nonliving parts of the ecosystem.

Mitosis, meiosis and sexual reproduction. Understanding gametes, zygotes, and haploid / diploid numbers.

The Calvin Cycle or the light-independent (dark) reactions of photosynthesis.

This YouTube video explains how river basins are formed.

This 20 minute YouTube video explores the differences between small and large scale agriculture and the uses of each.

This YouTube documentary highlights the ecological and socio-economic importance of the Tana River Basin in Kenya.