Module 3 b

Question 1

Type of interaction that occur between individuals
of the same species

Answer 1

Intraspecific

Question 2

Interaction that occur between two or
more species

Answer 2

Interspecific interaction

Question 3

Type of Competition that is Direct. Competitors directly harm or disable one another

Answer 3

Interference competition

Question 4

Type of Competition that is Indirect. Competitors
exploit the shared or common resources

Answer 4

Exploitative competition

Question 5

To co-exist for extended period, different species
must:
• live in different habitats
• use different resources
• obtain the same resources from different
sources
• or have different requirements in the
physical environment

Answer 5

Gauses’s Competitive Exclusion Principle

Question 6

Models a rate of population increase that is limited by
intraspecific competition (e.g. members of the same
species competing with one another).

Answer 6

Logistics growth model

Question 7

If population is exceeds the carrying capacity =
growth rate (-), population ( )
• If population is below the carrying capacity =
growth rate (+), population ( )

Question 8

• requires an individual that feeds on all or part of a
photosynthetic organism (e.g. Sea urchin)

Answer 8

Herbivory