Populations and Ecosystems Vocab

Define ecosystem

• a scientist who studies the interactions of organisms with each other and their environment

• a group of the same type of organism living in the same area

• all the living and nonliving things interacting in a particular area

• the process of creating offspring

Define competition

• the ability to make things move or change

• a molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms

• a population that eats organisms from another population

• when two or more populations use the same resource, such as the same food source

Define ecologist

• the ability to make things move or change

• a scientist who studies the interactions of organisms with each other and their environment

• all the living and nonliving things interacting in a particular area

• a molecule that organisms can use to release the energy needed to survive

Define population

• a group of the same type of organism living in the same area

• the process of creating offspring

• a population that is eaten by organisms from another population

• when two or more populations use the same resource, such as the same food source

Which explanation BEST describes why your answer defines a population?

• They are all the populations of the different species in a particular

  area.

• They are a group of interacting organisms of the same species located

  in the same area.

• They are a system that contains all the biotic and abiotic factors in an

  area

• They are a group of organisms with similar characteristics that are able

  to reproduce with each other to produce offspring.

What factor describes when populations increase because animals are moving into a population?

• Emigration

• Limiting Factors

• Immigration

• Exponential Growth

When organisms move out of the population, this is known as

• emigration

• abandonment

• immigration

• succession

If the population size stays stable, does this mean that no organisms have been born or died?

• Yes, because if organisms were born or died that would change the number of organisms in the population.

• No, because if some organisms are born and the same number of organisms die, then the total population size can stay constant.

• Yes, because some organisms never die, so they don't need to reproduce.

• No, because all organisms will give birth and then die.

All members of one species in a certain area. (a)  

• Population

• Limiting Factors

• Immigration

• Birth Rate

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Largest number of individuals of a population that the environment can support...  

• carrying capacity

• population crash

• lag phase

• mutualism

Tags

NGSS.MS-LS2-4