Which is the Species That is Especially Intolerant of Physical

Question

Which is the species that is especially intolerant of physical disturbance to their environment?  
A) Secondary succession
B) Intermediate disturbance hypothesis
C) Pioneer species
D) Indicator species
E) Keystone species

Accepted Answer

Indicator species are particularly sensitive to changes in their environment, making them useful for assessing the health of an ecosystem. They are intolerant of physical disturbances and can signal a decline in environmental quality.