WorksheetsTEKS 6.12EF Ecosystem Assessment
Total questions: 15
Worksheet time: 8mins
Ecosystem is the level of organization that is best described as including -
only a single individual of a single species plant or animal.
two species that live in the same habitat and depend on each other.
all of the abiotic factors which characterize a geographic area.
various species in an area and the abiotic factors on which they depend.
Community is the level of organization which is best described as all -
members of a certain species in a given area.
members of a species regardless of where they live.
living things, regardless of species, in an area.
living and non-living components of an area.
Which of the following describes an interaction between a biotic factor and an abiotic factor?
a pair of birds build a nest in a tree
a black bear uses a cave for a winter home
a squirrel gathers nuts to store for winter
a vulture eats the remains of a wild pig
The following lists levels of organization in an ecosystem from least complex to most complex. Which of the following belongs in the list where the question mark is?
organism
?
community
ecosystem
species
population
class
society
Meat-eating desert reptiles depend on which of the following biotic factors to supply their needs?
daytime temperature ranges above 30 degrees Celsius
condensation of moisture on plants for drinking water
small animals in their habitat on which they feed
plants that bear fruits during the summer months
Which of the following best describes a population?
all the organisms of a certain species in a given area
all the organisms in a habitat that compete for resources
one individual and all the organisms on which it depends
all of the living organisms which can be found in an area
Which of the following lists includes only abiotic factors?
plants, animals, average daily temperature
rainfall amounts, average daily temperature, minerals in soil
minerals in soil, plants, rainfall amounts
animals, rainfall amounts, soil composition
Which of the following statements describes a community?
one member of a species in a given area
all of the members of a species in a given area
all of the members of a species that live anywhere
all of the different species of living things in an area
What is the lowest level of organization of the bioshpere, or the one that has the fewest members?
ecosystem
population
community
organism
Which of the following is a description of an abiotic factor that makes up part of a desert habitat?
sparse growth of cottonwood trees
extremes of day and night temperatures
few large predators, such as coyotes
leafless, waxy-coated plant with sharp spines
A macaw is a type of parrot with colorful feathers that flies about in the upper canopy of trees in tropical rainforests. Macaws have a diet which inclludes fruits,leaves, nuts, and seeds of plants. Which of the following describes a biotic factor of the macaw's habitat that provides a survival advantage for these birds?
the colorful feathers are lost and regrow each year
some rainforest predators are able to climb trees
trees provide shelter and abundant food supplies
during some periods, rain falls nearly every day
Which of the following describes a change in a biotic factor that will be a disadvantage for a certain species of fish living around coral reefs in shallow seas?
heavy rains lower the salinity of the water for a long period of time
excessive cold weather lowers the temperature in the area
other fish species, which compete for the same resources, die out
the number of predators, such as sharks, increases dramatically
Which of the following correctly lists the levels of organization from least complex to most complex?
community, organism, population, ecosystem
population, community, ecosystem, organism
organism, population, community, ecosystem
ecosystem, population, community, organism
Which organizational level of the ecosystem does a pack of wolves represent?
ecosystem
organism
population
community
Which of the following descriptions represents the community level of organization?
a single individual rabbit, of a certain species, living in a forest
a group of rabbits, all of the same species, living in a forest
all of the rabbits in a forest, as well as their predators and food plants
all of the animals, plants, and non-living elements in a forest
