An Organism's Place in an Ecosystem
Cladistics
100

A plant or animal that plays a unique and crucial role in the way an ecosystem functions.

What is a KEYSTONE SPECIES?

100

This is a diagram.

What is a CLADOGRAM?

200

The role and space that an organisms fills in an ecosystem, including all its interactions with the biotic and abiotic factors of its environment.

What is ECOLOGICAL NICHE?

200

a group of organisms that consists of a common ancestor and all its lineal descendants

What is a CLADE?

300

A subset of the fundamental niche where an organism can maintain a stable species population.

What is REALISED NICHE?

300

a system of taxonomy in which the organisms are classified into clades (groups) based on collective characteristics and having common ancestry

What is CLADISTICS?

400

In the example above which type of niche are all three birds living in separately?

What is REALISED NICHE?

400

Trait/s shared by a horse and wolf.

What is HAIR?

500

Usually defined as a state in which two species competing for the same resources cannot stably coexist if other ecological factors are constant. Also called Gause's principle.

What is COMPETITIVE EXCLUSION PRINCIPLE?

500

The three assumptions of cladistics.

What is COMMON ANCESTRY, BIFURCATION, and PHYSICAL CHANGE?