Unit #1 Flashcards
(24 cards)
What is biological diversity?
Biological diversity refers to the variety of life forms on Earth, including the diversity of species, ecosystems, and genetic variations.
True or False: Biodiversity only refers to the number of species in a given area.
False
Fill in the blank: The three levels of biodiversity are _____, _____, and _____.
genetic diversity, species diversity, ecosystem diversity
What is genetic diversity?
Genetic diversity refers to the variation of genes within a species.
Which level of biodiversity includes different species in a particular habitat?
Species diversity
What is ecosystem diversity?
Ecosystem diversity refers to the variety of ecosystems within a certain area.
Multiple Choice: Which of the following is NOT a reason why biodiversity is important? A) Ecosystem stability B) Economic benefits C) Aesthetic value D) Increased pollution
D) Increased pollution
What is a threatened species?
A threatened species is a species that is likely to become endangered in the foreseeable future.
True or False: All forms of biodiversity are equally important.
True
Fill in the blank: The main threats to biodiversity include habitat destruction, _____, and _____ .
pollution, climate change
What does conservation biology study?
Conservation biology studies the preservation, protection, and restoration of biodiversity.
Multiple Choice: Which of the following is a method of conserving biodiversity? A) Deforestation B) Habitat restoration C) Overfishing D) Urban expansion
B) Habitat restoration
What is an invasive species?
An invasive species is a non-native species that spreads widely and causes harm to the environment, economy, or human health.
Fill in the blank: Biodiversity hotspots are regions that are both rich in _____ and significantly threatened by _____ .
biodiversity, human activities
What role do keystone species play in an ecosystem?
Keystone species have a disproportionately large impact on their ecosystem relative to their abundance.
Multiple Choice: Which of the following is an example of a keystone species? A) Sea otters B) House cats C) Goldfish D) Domestic dogs
A) Sea otters
What is the significance of the IUCN Red List?
The IUCN Red List is a comprehensive inventory of the global conservation status of biological species.
True or False: Biodiversity can contribute to human health.
True
True or False: Biodiversity can help ecosystems recover from disturbances.
True
What is bioprospecting?
Bioprospecting is the exploration of biodiversity for new resources, particularly for pharmaceuticals.
Fill in the blank: Ecosystem services provided by biodiversity include _____, _____, and _____ .
pollination, water purification, soil fertility
What is the main goal of sustainable development?
The main goal of sustainable development is to meet the needs of the present without compromising the ability of future generations to meet their own needs.
Multiple Choice: Which practice can help maintain biodiversity? A) Monoculture farming B) Sustainable agriculture C) Urban sprawl D) Habitat fragmentation
B) Sustainable agriculture
What is the connection between biodiversity and climate change?
Biodiversity can influence climate change by affecting the carbon cycle and ecosystem resilience.
