Biodiversity and Conservation Worksheet (Grade 12)

Fossils indicate there is more biodiversity today than in the past. Choose one: True or False.

• True

• False

Which of the following are causes of anthropogenic (human-caused) species extinction? Select all that apply.

• Overharvesting

• Habitat destruction

• Invasive species

• Pollution

• Global climate change

What was the main cause of the loss of mixed dipterocarp forest in Southeast Asia? Choose one.

• Clearing land for agriculture

• Urbanization of rural villages

• Expansion of mining operations

• Construction of hydroelectric dams

Which of the following is a cause of ecosystem loss in Hall County? Choose one.

• Land-use change for agriculture

• Increased annual rainfall

• Natural succession of forests

• Seasonal migration of wildlife

Besides richness and evenness, which measurement could be monitored over time to indicate changes in biodiversity? Choose one.

• Number of threatened species

• Average body mass of one species

• Daily weather forecasts

• Monthly visitor counts to parks

Which actions are included in active management techniques in biological conservation? Select all that apply.

• Maintenance of effective boundaries to protect from poachers and invasive species

• Restoration of degraded areas to maintain original habitat conditions

• Measures to facilitate completion of species’ life cycles (e.g., nesting boxes)

• Promotion of recovery of endangered species through restocking or reintroduction

• Creation of decorative landscapes without ecological goals

Which statements describe advantages of in situ conservation of endangered species? Select all that apply.

• Preserves species in their natural habitat or nature reserve

• Allows species to occupy their natural position in the food chain

• Maintains normal behaviour through learning from parents and peers

• Retaining natural habitat prevents its loss and ensures it remains available for other endangered species

• Ensures species adapt to captive artificial conditions

Which statements are advantages of ex situ conservation? Select all that apply.

• Greater control over environmental conditions

• Improved breeding success due to artificial methods

• Immediate restoration of wild populations without reintroduction

• Ability to restrict access to habitats for tourism

Which statements are disadvantages of ex situ conservation? Select all that apply.

• Animals may be less likely to be successfully reintroduced to the environment

• Restricting the gene pool can cause inbreeding

• Species always retain full wild behaviours in captivity

• Captive environments perfectly match all wild conditions

Which criteria are used to determine if a species should be deserving of conservation? Select all that apply.

• The species has close relatives

• The species is in danger of extinction

• The species is widespread and increasing

• The species is exempt from legal protection