Question

The table shows some observations made by four students during a field trip to a nature area. Which student observed the area that has the greatest biodiversity? *

Student 1
Student 2
Student 3
Student 4

Think globally, act locally! This is an expression that has been applied to many ecological problems, such as global warming (global climate change), air pollution, and recycling.

Describe how various organisms are part of that biochemical cycle and explain how they recycle that substance in the ecosystem and biosphere. *

Provide one example of how human activity has impacted your chosen biochemical cycle. Discuss one step we can take to reduce harmful human impact on the ecosystem. *

Answer 1

Student 2 has seen the most bio-diversity.
This is because all the others see animals of the same species.

As for the other parts of your question, I don't think I can help too much with that.

Answer 2

Please see below

Step-by-step explanation:

If we define biodiversity as the number of species in an ecosystem (without considering abundance) then student 2 got the area with the greatest biodiversity, because he observed three species, when all other students observed only one species.

Think globally, act locally! is an expression that calls for action, and its foundation is that even a small local action can, when joined with other small local actions, result in a larger impact with a global impact. A great idea isn't it? It basically empowers you to act with a notion that it will matter.

If we consider the case for carbon, many organisms are part of its biochemical cycle, like plants, herbivores and carnivores, and even detritivores. The plants use carbon dioxide from the atmosphere to buid their tissues which are later consumed by herbivores that are then eaten by the carnivores. In each of these steps carbon is transferred (recycled) from one link of the food chain to the next. When the plants and the animals die the detritivores decompose them and carbon is incorporated to the soil. During respiration, animals release carbon dioxide back to the atmosphere.

Humans have impacted the carbon cycle by extracting carbon products from the ground (fossil fuels like charcoal and oil) and when they are burnt they are released to the atmosphere enriching the carbon dioxide concentration and causing the greenhouse effect and climate warming.

To reduce the harmful human impact on the ecosystem we could use public transportation instead of driving cars, and use cleaner forms of energy like solar energy.