Ecology 1

Barnacles are animals that cannot move. In order to get food, they attach to whales and catch any floating plankton in the water. The whale is neither helped nor harmed in the interaction. What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

In the wild, some alligators gets their teeth cleaned by birds. The birds gets their food from the alligators' teeth.

What type of symbiosis is this?

• Mutualism

• Commensalism

• Parasitism

• Neutralism

In this photo, what is an abiotic factor?

• Deer

• Grass

• rain

Study of interactions between organisms and their environment 

• niche
• community 
• ecology
• ecosystem

Members of a species in a defined area

• Ecosystem
• community
• biodiversity
• population

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

The nonliving aspects of an ecosystem.

• Abiotic factors
• Biotic factors

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Individuals that can breed with one another make up a

• species
• population
• community
• ecosystem

Organisms that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals

• Autotroph
• Heterotroph
• Omnivore
• Carnivore