Lecture 12

Question 1

What does biodiversity primarily measure in a given location or region?

A) The number of animal species only
B) The climate and weather patterns
C) The variety of biological life, including species richness, evolutionary history, and ecosystem diversity
D) The geographical features of the region

Answer 1

C) The variety of biological life, including species richness, evolutionary history, and ecosystem diversity

Question 2

Why do estimates of Earth’s total number of species vary widely?
A) All species have already been discovered
B) Some habitats are difficult to access for species identification
C) The number of species is constant across all habitats
D) Species do not exist in inaccessible habitats

Answer 2

B) Some habitats are difficult to access for species identification

Question 3

What does the formula S = cAz in biodiversity studies represent?
A) The relationship between species richness (S) and area (A)
B) The calculation for climate impact on species
C) The population growth rate of a single species
D) The migration pattern of species

Answer 3

A) The relationship between species richness (S) and area (A)

Question 4

What is alpha-diversity?
A) Diversity across the entire planet
B) Diversity within a specific area or ecosystem
C) The difference in species between two continents
D) The number of dominant species in a region

Answer 4

B) Diversity within a specific area or ecosystem

Question 5

Why is the concept of species richness important in studying biodiversity?
A) It only counts the number of invasive species
B) It indicates the total number of different species in an area
C) It measures the size of the largest species in an area
D) It calculates the age of the oldest species in an ecosystem

Answer 5

B) It indicates the total number of different species in an area

Question 6

Which of the following best describes beta-diversity?
A) The total number of species in a large region
B) The genetic diversity within a single species
C) The difference in species between habitats
D) The diversity of ecosystems on a global scale

Answer 6

C) The difference in species between habitats

Question 7

In the Species-Area Relationship, what does a higher ‘z’ value in the formula S = cAz indicate?
A) A slower increase in species richness with area
B) A more rapid increase in species richness with a small increase in area
C) Decreased species richness regardless of area
D) No relationship between species richness and area

Answer 7

B) A more rapid increase in species richness with a small increase in area