TEKS 6.12EF Ecosystem Assessment

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.

Tags

NGSS.MS-LS2-3

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

Tags

NGSS.MS-LS2-3

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

Tags

NGSS.MS-LS2-1

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