Answer:

1Terrestrial ecosystems are ecosystems found only in land; these include tropical rainforests, deserts, grasslands, deciduous forests, tundra, and taiga. Aquatic ecosystems are ecosystems found in bodies of water; these include lakes, rivers, ponds, wetlands, oceans, and seas.

2Organisms interact with the living and nonliving parts of the ecosystem in order to survive. When one part of an ecosystem is altered or destroyed, it impacts everything in the ecosystem.

3Mutually beneficial relationships can increase the populations of both species interacting. And the organisms influence their environment, shaping Earth's surface and the resources available to ecosystems. Thus, interactions among species are a major component of how like on Earth persists and evolves through time.

4Favorable ecosystem ensures that each organism thrive and multiply as expected. They get enough food to keep them alive. Ecological balance is also important because it leads to the continuous existence of the organisms. It ensures that no particular species is exploited or overused.

5Human activities influence the environmental stability. Tree planting and reduced deforestation rate prevent undesirable climate change. Control of excessive wild animals' inhabitant maintains desired population growth. Therefore, a human can contribute positively to create and maintain ecological balance.