What is biodiversity?
Biodiversity at Risk

Flashcard
•
Science
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the diversity of species, genetic variation, and ecosystem diversity.
2.
FLASHCARD QUESTION
Front
What does it mean for a species to be endangered?
Back
An endangered species is one that is at risk of extinction due to a variety of factors, including habitat loss, pollution, and overexploitation.
3.
FLASHCARD QUESTION
Front
What is habitat fragmentation?
Back
Habitat fragmentation is the process by which large, continuous habitats are divided into smaller, isolated patches, often due to human activities like urban development and agriculture.
4.
FLASHCARD QUESTION
Front
How does habitat fragmentation affect species?
Back
Habitat fragmentation can lead to species isolation, making it difficult for species to find mates, food, and migrate, which can reduce genetic diversity.
5.
FLASHCARD QUESTION
Front
What are keystone species?
Back
Keystone species are organisms that have a disproportionately large impact on their ecosystem relative to their abundance, helping to maintain the structure and health of the ecosystem.
6.
FLASHCARD QUESTION
Front
What is the primary cause of the current rate of species extinction?
Back
The current rate of species extinction is primarily due to human activities, including habitat destruction, pollution, and climate change.
7.
FLASHCARD QUESTION
Front
Where are the greatest number of extinctions occurring?
Back
The greatest number of extinctions is occurring in tropical rain forests, which are rich in biodiversity but highly threatened by deforestation.
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