Ecology Test Review Question Preview (ID: 33058)


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A cat tries to catch a fish. What relationship is this?
a) mutualism
b) competition
c) predator-prey
d) commensalism

What is the primary source of endergy in all ecosystems?
a) animals
b) plants
c) water
d) the sun

Which is an ABIOTIC factor that would affect the growth of a population within an ecosystem?
a) the availability of water
b) the availability of producers
c) the type of herbivores present
d) the number of carnivores present

Prairie dogs rely on underground tunnels for their shelter. Which BEST explains how the prairie dog population is affected when their tunnels are disrupted and exposed?
a) the prairie dogs are burned by the sun
b) the prairie dogs are exposed to predators
c) the prairie dogs can find more food to eat in the fields
d) the prairie dogs are forced to learn to live in trees and shrubs

Plants are...
a) Producers
b) Primary Consumers
c) Herbivores
d) Omnivores

A word that means the same thing as consumer is what?
a) Producer
b) Autotroph
c) Heterotroph
d) Biomass

The study of the interactions between living organisms and their environment is called what?
a) Biology
b) Ornithology
c) Anthropology
d) Ecology

When space is limited in an ecosystem, how is a bird population MOST likely to be affected?
a) competition will decrease
b) survival rate will increase
c) availability of food will increase
d) availability of nesting spots will decrease

What are two ways nitrogen gas becomes fixated and changed to a usable form?
a) bacteria and lightning
b) bacteria and sedimentation
c) food chain and amino acids
d) fertilizer and animal waste

Which term BEST describes a flea on a dog?
a) decomposer
b) contagion
c) parasite
d) vector

Which of the following is NOT one of the five major biogeochemical cycles?
a) Carbon
b) Nitrogen
c) Water
d) Iodine

All the interconnected feeding relationships in an ecosystem make up a food...
a) web
b) system
c) network
d) community

What is at the base (or beginning) of a food web or chain?
a) decomposition
b) precipitation
c) consumers
d) producers

Which statement about mutualism is correct?
a) One organism benefits, one is harmed
b) One organism benefits, one is not affected at all
c) Both organisms benefit
d) Neither organism is affected at all

The relationship between a carnivore and herbivore can be stated as...
a) parasite and host
b) predator and prey
c) cooperation
d) commensalism

An ecosystem is defined as...
a) a group of organisms and the habitat they share
b) the food chain in a specific area
c) a predator and prey relationship
d) a single species

How do producers (plants) take in oxygen and give off carbon dioxide?
a) aerobic or cell respiration
b) photosynthesis
c) water cycle
d) oxygen cycle

What contains the most carbon in the carbon cycle?
a) volcanoes
b) organisms
c) diamonds
d) coal

How to animals take in oxygen and give off carbon dioxide?
a) aerobic or cell respiration
b) photosynthesis
c) water cycle
d) oxygen cycle

Which part of a food web has the most available energy?
a) primary consumers
b) producers
c) herbivores
d) tertiary consumers

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