Vocabulary
Ecological Relationships
Ecosystems
Classification of Organisms
Dissection
100

These are the nonliving factors that impact an ecosystem.

Abiotic

100

This type of ecological relationship happens when a parasite feeds on a host.

Parasitism
100

This is a group of one type of organism living together in an area.

Population

100

The most specific level of classification of organisms.

Species

100

This term describes the concentration of sensory organs at the anterior end.

Cephalization

200

A species that is non-native to an area and throws the ecosystem out of balance.

Invasive

200

This type of ecological relationship happens when two organisms benefit from an interaction.

Mutualism

200

These factors do not depend on the size of the population as far as how they affect it.

Density-independent

200

The broadest level of classification of organisms.

Domain

200

The portion of the body closest to an organism’s tail/hind region.

Posterior

300

The amount of members of the population an area can support.

Carrying Capacity

300

This principle states that two species with the same niche cannot live together in the same area.

Competitive Exclusion Principle

300

This is a group of multiple populations living together in an area.

Community

300

This is a series of two-step options used to identify unknown organisms or objects.

Dichotomous Key

300

DAILY DOUBLE-This type of symmetry has multiple planes that extend outward like spokes.

Radial symmetry

400

An organism’s role in the ecosystem.

Niche

400

DAILY DOUBLE-This means “to live together” and happens when organisms have a close relationship with one another.

Symbiosis

400

This is the name of the sphere of Earth where all living things are located.

Biosphere

400

This level of organization comes after kingdom.

Phylum

400

The portion of the body closest to an organism’s stomach.

Ventral

500

A member of my population leaves to join a new population.

Emigration

500

These symbols represent the symbiotic relationship known as commensalism.

+,0

500

This is the area or region in which the conditions are right for certain plants to grow.

Hardiness zone

500

This level of organization comes after class.

Order

500

This is a body cavity containing internal organs.

Coelom