Assignment 6

Question 1

Importance value can be written as
a. Relative density + Relative frequency X Relative dominance
b. Relative density X Relative frequency + Relative dominance
c. Relative density + Relative frequency + Relative dominance
d. Relative density X Relative frequency X Relative dominance

Answer 1

Relative density + Relative frequency + Relative dominance

Question 2

A species found most frequently in a particular community, but also present occasionally in
others is called
a. accidental species
b. indifferent species
c. selective species
d. exclusive species

Answer 2

selective species

Question 3

When compared to generalist species, specialist species have
a. narrower niches
b. broader niches
c. same-size niches
d. none of these

Answer 3

narrower niches

Question 4

A climax caused by wildfires is an example of
a. climatic climax
b. edaphic climax
c. disclimax
d. catastrophic climax

Answer 4

catastrophic climax

Question 5

Lithosere is an example of
a. hydrosere
b. xerosere
c. psammosere
d. halosere

Answer 5

xerosere

Question 6

Which of these is correct?
a. Fundamental niche > Realised niche
b. Fundamental niche = Realised niche
c. Fundamental niche < Realised niche
d. a or b

Answer 6

a or b

Question 7

Importance value varies from
a. 0 to 10
b. 0 to 50
c. 0 to 100
d. 0 to 300

Answer 7

0 to 300

Question 8

The climax near Tindni village is being controlled by disturbance by cattle. This is an example of
a. climatic climax
b. edaphic climax
c. disclimax
d. catastrophic climax

Answer 8

disclimax

Question 9

Which of these is not a characteristic of pioneer species
a. ability to grow on bare rocks
b. ability to tolerate extreme temperatures
c. large size
d. short life span

Answer 9

large size

Question 10

Which of these depicts correctly the lithosere primary succession?
a. Rock → Crustose lichen → Foliose lichen → Moss → Herbaceous
stage → Shrub → Woodland → Climax
b. Rock → Foliose lichen → Crustose lichen → Moss → Herbaceous
stage → Shrub → Woodland → Climax
c. Moss → Crustose lichen → Foliose lichen → Rock → Herbaceous
stage → Shrub → Woodland → Climax
d. Rock → Crustose lichen → Foliose lichen → Shrub → Herbaceous
stage → Moss → Woodland → Climax

Answer 10

Rock → Crustose lichen → Foliose lichen → Moss → Herbaceous
stage → Shrub → Woodland → Climax