Higher Biology 3.7 & 3.8 Components & Threats to Biodiversity
Quiz
•
Biology
•
11th Grade
•
Practice Problem
•
Easy
Crystal Neill
Used 6+ times
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14 questions
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1.
MATCH QUESTION
1 min • 1 pt
Match the following components of biodiversity to their definitions
Genetic Diversity
number and frequency of all the alleles within a population.
Species richness
number of distinct ecosystems within a defined area.
Ecosystem Diversity
proportion of each species in the ecosystem
Relative abundance
number of different species within an area
2.
DROPDOWN QUESTION
1 min • 1 pt
Within a species, if one population dies out (for example within a species of fish, if one whole population in an area dies out) the species will experience (a) in genetic diversity
Answer explanation
when a population dies out, those alleles are now wiped out from the species.
Genetic diversity is the frequency and number of different alleles in an area, so if we lose a full population this will GO DOWN
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Look at the 2 areas. Which area is more diverse?
1
2
Answer explanation
Area 1 is less diverse/area 2 more diverse as we can see in area 1 it has a dominant species, higher proportion of seals
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement is true of the 2 areas?
Both areas have the same species richness
The areas have a different species richness
Answer explanation
Area 1 has one more species, the penguins, therefore their species richness is not the same in the different areas.
Remember, species richness is the number of different species in an area.
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
When a population has been overexploited to the point the remaining population is very small with reduced genetic diversity this is known the
6.
OPEN ENDED QUESTION
3 mins • 1 pt
Give an example a negative impact the bottleneck effect can have on a population
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Answer explanation
- Inbreeding occurs, leading to lower reproductive rates (due to inbreeding depression)
- They are less able to evolve and adapt to environmental changes (because of the loss of genetic diversity)
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
This picture shows an example of a threat to biodiversity. This is known as
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