Bioninja Biodiversity, Extinction, Climate Change

Which of the following does not contribute to ecosystem stability?

Which of the following can exhibit biodiversity?

I. The genome of a species.

II. The morphology of a species.

III. An ecosystem.

IV. A population

Why does biodiversity increase ecosystem stability?

In Botswana, forest cover decreased from 18.8 million hectares to 15.3 million hectares between 1990 and 2020. Calculate the percentage loss in forest cover during this period.

Which of the following should be kept in mind when designing nature reserves?

I. Smaller habitats promote biodiversity

II. The nature reserve should be actively managed, for example removing invasive species

III. Habitat corridors between fragmented parts of a habitat can enhance genetic diversity

Which of the following are correct in regard to EDGE species?

I. Their genome is relatively unique.

II. Their morphology is common to several species.

III. They are producers in the ecosystem.

IV. They are endangered.

Which of the following is an example of insitu conservation of biodiversity?

How do you feel about the topic of biodiversity?

How do you feel about the topic of human impact and conservation?

Which property of a pollutant like mercury allows it to undergo biomagnification?

Which of the following contribute to the problem of microplastic pollution in marine environments?

I. Persistence of microplastics.

II. Biodegradability of microplastic.
III. Non-biodegradability or microplastic.

IV. Increased biochemical oxygen demand.

Why does leaching of nitrogen and phosphate fertilisers lead to an increase in the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems (lakes and rivers)?

How do you feel about pollution, biomagnification, and CO2 emissions?

The anthropogenic greenhouse effect is caused by which of the following?

I. Fossil fuel combustion

II. Volcanic activity

III. Intensive agriculture

How does increased atmospheric carbon dioxide concentration contribute to the process above?

How does increasing ocean acidification affect the ability of corals to build and maintain their calcium carbonate skeletons?

What causes decalcification of corals leading to collapse of coral ecosystems?

Which of the following are affected by increased melting of ice shelves?

I. Breeding habitats for penguins.

II. Hunting areas for polar bears.

III. Primary production of marine algae.

IV. Sea ice habitat for walruses.

Which of the following is produced by anaerobic fermentation but not by combustion?

Which factor is a cause of the change in Boreal forests from net carbon accumulation to net loss? .

How do you feel about pollution, biomagnification, and CO2 emissions?