The Sahara Desert is not considered a global biodiversity hotspot due to its extremely arid climate and low species diversity.

Biodiversity hotspots are estimated to contain around 50% of the world's plant and animal species.

Biodiversity hotspots are threatened by a combination of factors, including climate change, habitat loss, pollution, and overexploitation of resources.

Indonesia is home to the highest number of biodiversity hotspots, with 11 out of the 36 global hotspots.

Natural selection, evolution, and adaptation are all terms used to describe the process by which species change over time in response to their environment.

Sea otters are considered a keystone species because they play a crucial role in maintaining the health of kelp forests by preying on sea urchins, which prevents the urchins from overgrazing the kelp.

Biodiversity loss is the term used to describe the decline in the variety of life on Earth, including the loss of species, ecosystems, and genetic diversity.

Cultural diversity is not a type of biodiversity, as it refers to the variety of human cultures and traditions.

Introduced species are species that have been brought to an area by humans, either intentionally or unintentionally.

While natural disasters can cause localized biodiversity loss, they are not considered a major cause of global biodiversity loss.

Extinction is the term used to describe the process by which a species ceases to exist.

Giant pandas, blue whales, and African elephants are all examples of endangered species.

Conservation, preservation, and restoration are all terms used to describe the process of protecting species from extinction.

Habitat destruction is not a type of conservation, as it leads to the loss of biodiversity.

Restoration is the term used to describe the process of bringing degraded ecosystems back to their natural state.