Mushrooms and bacteria are considered __________.
Decomposers
What is an association between two organisms where one benefit and the other organism is neither benefitted or harmed?
Commensalism
___________ is the study of interactions among organisms and their environments.
Ecology
The most energy is available at the _________ level of the energy pyramid.
Producer
With concern to the energy pyramid, explain the relationship between plants and animals.
Greater plant production allows for larger animal productions
What would an organism be called that lives on or inside another organism and derives its nutrition from that organism?
A Parasite
Which is an example of a aquatic ecosystem?
Ocean, Lake, Creek, River, Coral Reef, ...
Define Ecology.
The study of the classification of organisms.
__________ is all the populations of different species that live in an ecosystem.
Community
What happens when an animal has no natural predators?
The population grows
A Gazelle eats grass, and is later eaten by a Tiger. What is the prey in this situation?
Gazelle
Which term identifies the role a species plays in its ecosystem?
Adaptation
___________ is the limit of organisms for an environment.
Carrying Capacity
A group of similar organisms that can interbreed and produce fertile offspring is called __________.
Species
A ___________ is an organism that breaks down dead plant and animal material.
Decomposer
What is the purpose of a food chain?
1) It shows what organisms eat which foods.
2) It shows the transfer of energy between trophic levels
A group of similar organisms that can interbreed and produce fertile offspring is called ________.
Why is an ecological pyramid smaller at the top that it is at the bottom?
Less predators
The study of interactions between organisms and their environments is called ______________.
Ecology
The less energy available to a population, the ________ the population will be.
Smaller
What is the primary focus of a food web?
1) It is a diagram of what eats what.
2) It shows the movement of energy within an ecosystem.
Which of these is a nonliving part of the environment? For example: water, dirt, air, and rocks.
Abiotic
What shows the flow of energy in a biome?
Food chain or food web
In an ecosystem, there are two separate categories to describe the living things. These categories are known as the _______.
Producers and consumers
In this food chain: Plants -- Mouse -- Snake -- Hawk, what might happen to the population of mice if the snakes are removed from the ecosystem?
The Mouse population will increase