Modified 6.12ABCDEF Classification, Organization

The table lists levels of organization in an ecosystem from least complex to most complex. Which of the following belongs in the table where the question mark is?

• Species

• Population

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.

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.

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

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.

Which of the following describes a change to an abiotic factor of a squirrel’s habitat that could be harmful to it?

• Increase in the population of food plants.

• Drought that depletes available water.

• Deforestation leading to reduced nesting sites.

What is the lowest level of organization of the biosphere, or the one that has the fewest members?

• Ecosystem

• Population

• Community

• Organism

Which characteristic distinguishes plants from fungi? All members of the kingdom Plantae–

• produce offspring through sexual reproduction

• make their own food from sunlight.

• are made of more than one cell.

All members of the domain Bacteria have which of the following characteristics? All bacteria– are

• multicellular.

• reproduce sexually.

• lack a nucleus in their cells.

• make their own food.

Which kingdom includes only organisms that are heterotrophic, all of which reproduce sexually?

• Fungi

• Plantae

• Animalia