These organisms are herbivores, therefore they are called ______________ consumers.
What is primary?
100
These are 3 types of keystone species
What is keystone engineer, prey, and predator?
100
The branch of biology that deals with the relations of organisms to one anothee and to their physical surroundings
What is ecology?
200
This is when one animal benefits and one does not. The animal that does not benefit is not harmed.
What is commensalism?
200
An organism that breaks down wastes and dead organisms.
What is decomposer?
200
The expected environmental changes when a previously removed keystone species is reintroduced
What is original state?
200
An environment that provides the things an organism needs to live, grow, and reproduce.
What is a habitat?
300
This is when one animal harms another animal.
What is parasitism?
300
These organisms are typically at the top of the food chain. They are called ____________ consumers.
What is tertiary?
300
A swarm of these can drastically alter the abundance of insects and other small animals in the habitat through which they pass
What is a driver ant?
300
The definition of biodiversity is _____________________.
What is the variety of different organisms living in a certain area?
400
The hermit crab is less likely to be eaten by cuttlefish when an anemone rides on its shell. The anemone gains access to a wider feeding range.
What is commensalism?
400
These organisms produce energy through the use of photosynthesis
What is a primary producer?
400
The elimination of this species caused "sea-urchin barren" to spread across the western coast.
What is a sea otter?
400
The study of life
What is biology?
500
A green alga and fungus are dependent on each other. The fungus gains nutrients synthesized from the alga, and the alga receives water and nutrient salts from the fungus.
What is mutualism?
500
What is the percentage of energy LOST as it moves from producer to primary consumer to secondary consumer?
What is 90%?
500
The term given to a species that plays a very important role in an ecosystem. The ecosystem would fall apart quickly if this species disappeared.
What is keystone species?
500
A series of events in which one organism eats another and obtains energy. Usually written on one line.