WorksheetsPopulations, Communities, and Ecosystems Test
Total questions: 25
Worksheet time: 23mins
What is ecology?
the study of life
the study of the interactions (connections) among living things, and between living things and their environment
the study of fossils, embryos, homologous structures and how they are evidence of our evolution from a common ancestor
the study of atoms, molecules, organelles and cells
What is the initial (first or primary) source of energy in every ecosystem?
plants
higher level consumers
the sun
decomposers
Introduced species disrupt ecosystems because they are a/an
Keystone Species
Endemic Species
Invasive Species
Native Species
The role of an organism in its environment.
Competition
Niche
Invasive Species
Job
The struggle between two animals using the same limited resources
Competition
Symbiosis
Mutualism
Commensalism
When one animal kills another for nutrients/food
Symbiosis
Niche
Predation
Interaction
A relationship between two species living close together
Symbiosis
Mutualism
Commensalism
Parasitism
A relationship where both species benefit
Symbiosis
Mutualism
Commensalism
Parasitism
A relationship between two species where one benefits and the other is not helped or harmed
Symbiosis
Mutualism
Commensalism
Parasitism
A relationship where one species benefits and the other species is harmed
Symbiosis
Mutualism
Commensalism
Parasitism
When a honeybee pollinates flowers, the bee gets access to nectar, while the flowers gain the chance to reproduce. This is an example of:
Amensalism
Commensalism
Parasitism
Mutualism
Remoras are fish that swim alongside sharks, eating scraps that the sharks leave behind. This is an example of:
Amensalism
Commensalism
Parasitism
Mutualism
The series of predictable changes that occur in a community over time
Pioneer Species
Succession
Niche
Colonize
The first species to populate an area are called
Keystone species
Pioneer Species
Secondary Species
Primary Species
A species that influences the survival of many other species in an area
Pioneer Species
Keystone Species
Primary Species
Secondary Species
A healthy forest ecosystem in the Northwest is home to elk, mule deer, chipmunks, ground squirrels, and a variety of plants. What is the relationship between biodiversity and available resources?
Biodiversity is not affected by changes to available resources.
Biodiversity decreases the amount of available resources.
Biodiversity increases with abundant resources and decreases when resources are scarce.
Biodiversity decreases with abundant resources and increases when resources are scarce.
The disappearance of all members of a species from Earth
Biodiversity
Keystone species
Extinction
Invasive species
The number and variety of different species in an area
Biodiversity
Keystone species
Extinction
Invasive species
