Human Impact 2019
Flashcard
•
Biology
•
9th - 12th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is genetic drift via bottleneck effect?
Back
Genetic drift via bottleneck effect occurs when a population's size is significantly reduced for at least one generation, leading to a loss of genetic diversity. This can happen due to events like natural disasters or human activities.
2.
FLASHCARD QUESTION
Front
What is the impact of desalination on ocean environments?
Back
Desalination can alter ocean salt levels, potentially causing loss of species and unbalanced populations in marine food webs due to changes in salinity.
3.
FLASHCARD QUESTION
Front
Why is biodiversity important in ecosystems?
Back
Biodiversity increases the chance that some organisms will survive major environmental changes, contributing to ecosystem resilience.
4.
FLASHCARD QUESTION
Front
What factors should be considered when leasing land for strip mining?
Back
Factors include the threat to local biodiversity, management of the land post-mining, potential job creation, and increased traffic.
5.
FLASHCARD QUESTION
Front
How does biodiversity affect resistance to invasive species?
Back
Areas with higher biodiversity are generally more resistant to invasive species, as diverse ecosystems can better withstand and adapt to changes.
6.
FLASHCARD QUESTION
Front
What is gene flow?
Back
Gene flow is the transfer of genetic material between populations, which can increase genetic diversity and reduce differences between populations.
7.
FLASHCARD QUESTION
Front
What is the founder's effect?
Back
The founder's effect is a form of genetic drift that occurs when a small group of individuals establishes a new population, leading to reduced genetic variation.
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