Biodiversity: Practice Questions

Which of the following animal groups is correctly matched with its body covering?

Which of the following human activities contributes to the reduction of biodiversity by introducing harmful substances into the environment that can kill sensitive species?

A protected nature reserve is home to a critically endangered bat species that is the sole pollinator for a specific fruit tree, which in turn is a primary food source for several endemic bird species. The reserve faces threats from illegal logging and a new fungal disease affecting the bats. Which of the following conservation strategies would be the most comprehensive and effective for ensuring the long-term survival of this entire interconnected ecosystem?

What does the term biodiversity primarily refer to?

Global climate change, largely driven by human activities such as burning fossil fuels, impacts biodiversity primarily by:

What are the three fundamental levels at which biodiversity can be observed and measured?

Explain how the introduction of invasive alien species can lead to a reduction in native biodiversity.

In an isolated population of a rare species, genetic studies reveal very low genetic diversity among its individuals. Explain how this lack of genetic diversity makes the species highly vulnerable to extinction, especially if a new disease or sudden environmental change occurs.

Biodiversity provides essential benefits to humans and the natural environment. However, human activities such as the construction of large residential estates in green belts can threaten this variety.
a) State two resources that humans directly obtain from biodiverse ecosystems. (2 points)
b) Explain how habitat destruction during construction leads to a reduction in the species diversity of an area. (3 points)

Forest ecosystems are complex webs of living organisms. Consider the role of pollinators (like bees and butterflies) and decomposers (like fungi and bacteria) in a temperate forest. Both groups are vital for the ecosystem's health and stability.

a) Explain the specific vital function performed by pollinators in the forest ecosystem and why it is crucial for plant reproduction and overall plant diversity. (3 points)
b) Describe the specific vital function performed by decomposers and elaborate on how their absence would impact the nutrient cycle and the long-term survival of other living things in the forest. (4 points)