Random 1
True.
What is the term for when the last member of a species dies?
Extinction
Species found only in a specific geographic area are this.
Mutations can increase genetic diversity. True or false.
True.
The Amish community can be considered an example of the...?
Founder effect.
Biodiversity between different species includes?
Species richness and species abundance.
What is the variety of life in an area?
Biodiversity.
How are humans threatening biodiversity?
Building more houses, polluting the air and water, removing forests, overfishing, etc.
What is habitat diversity?
The number of different habitats within an area.
The role an organism plays within its habitat.
Heterozygosity Index.
Imagine two different ecosystems:
Ecosystem A:
Ecosystem B:
Which one would have higher biodiversity?
Ecosystem A.
What is the term used to describe excessive use or harvesting of natural resources, including plants, animals, and minerals, at a rate faster than they can replenish?
Over-exploitation.
What is using resources at a rate at which they can be replaced or recycled while preserving the health of the biosphere?
Sustainability.
If members of this population carries gene that were “rare” in the main population, these traits will now occur more frequently in the new population. This can be seen in...?
The Founder Effect.
What is species richness?
The number of different species within an area/community.
Giraffes long neck that allow it to survive is an example of...?
An adaptation.
What is species abundance?
Number of individuals of a particular species within a specific area or ecosystem.
Populations with more genetic diversity are more proficient in ...... than populations with low genetic diversity.
Changes in the environment.
What are disadvantages of seed banks? Give at least 2 reasons.
1. Testing seeds is expensive.
2. Testing seeds takes a long time.
3. We cannot store all types of seeds.
4. It is difficult to collect certain types of seeds (ex. seeds in remote habitats).
What is conservation?
Protecting and managing species for future generations.
This occurs when animal waste, raw sewage, or other items rich in nitrogen and phosphorus flow into waterways causing excessive algae growth.
Eutrophication.
What is the greenhouse effect? How is it related to global warming?
Greenhouse effect = natural phenomenon where greenhouse gases in our atmosphere trap heat.
Global warming is caused by too much greenhouse effect.
What is the captive breeding program? Where can they occur?
Conservation strategy that involves breeding endangered species in controlled environments such as the zoo/wild life reserves.
What are challenges of captive breeding programs? Name 2.
1. Behavioral issues = animals may lack appropriate survival skills.
2. Habitat loss = there may not be an environment for the organisms to return to.
3. Small initial populations can lead to reduce genetic diversity, make the species more vulnerable to diseases and environmental changes.
4. Expensive and require facilities/expertise.