Chapter 33 Quiz Flashcards
What is a carnivore? With ex:
An organism that consumes only meat. Ex: bear/lion
A period of low metabolism and inactivity similar to hibernation but experienced in hot weather is an example of?
Estivation
Define topsoil
Dark, upper layer
Most fertile
Define mutalism and give an example.
Beneficial relationship that is often necessary for the survival of both species. Ex. Bee + flower. ✔✔
Define parasitism and give an example of it.
Is a relationship in which one organism if completely dependent on a host that is usually harmed. Ex. Mosquito and human. ✔✖
Define commensalism with an example.
Is a type of relationship in which one organism benefits a other organism without being harmed by the relationship. Ex. Shark and fish. ✔➖
What does pyramid of energy show?
It shows the loss of energy as it is transferred through a food chain.
What is the enriched layer of soil that contains the decay remains of organisms?
Humus
What is the nitrogen cycle?
Movement of nitrogen through an ecosystem.
What does an ecosystem depict?
It depicts the interactions of a community with the physical environment.
Define pyramid of biomass
Shows the relationship of biomass and tropic levels.
What is a herbivore?
An organism that eats producers. Eats plants
What is the definition of medium?
A substance in which an organism lives.
What is an organism that feeds on both producers and consumers?
Omnivore
What is a biotic factor?
The relationship among organisms in an ecosystem.
What is an abiotic factor?
The physical aspects of the environment.
What is an animal that feeds on dead animal?
Scavenger
What does a food chain represent?
The passage of energy and materials through a community.
What describes all the possible feeding relationships in an ecosystem?
A food web.
What is altitudinal succession?
The continuous succession of community types from low to high altitudes.
What is a swollen area on a root that contains nitrogen-fixing bacteria?
Nodule.
What is a nitrogen fixation?
The plant process whereby nitrogen gas is changed to a usable form.
The relationship showing the decrease in the number of organisms with each higher tropic level is the definition of terrible?
Pyramid of numbers.
It feeds directly on a producer. What is it?
First order consumer. Ex: Cow grazing on grass. Deer browsing on foliage. Tadpole eating algae.