Unit 3 Test

An organism's niche is

• the range of physical and biological conditions in which an organism lives and the way it obtains what it needs to survive and reproduce.
• all the physical and biological factors in the organism's environment.
• the range of temperatures that the organism needs to survive.
• a full description of the place an organism lives in.

An interaction in which an animal feeds on plants is called

• carnivory
• herbivory
• predation
• symbiosis

A symbiotic relationship in which both species benefit is

• commensalism
• mutualism
• predation
• parasitism

The pattern of spacing between individuals across the range of the population is its

• growth rate
• distribution
• density
• habitat

There are 150 Saguaro cactus plants per square kilometer in a 10-square-kilometer area of the Arizona desert. To which population characteristic does this information refer?

• growth rate
• geographic range
• age structure
• population density

Which of the following gives you information about a population's age structure?

• There are 10 males and 15 females under the age of two.
• There are 25 individuals with a square kilometer.
• All individuals are found at least 10 meters away from others.
• Individuals live in rain forests in tropical South America.

Which of the following is NOT one of the factors that play a role in population growth rate?

• immigration
• death rate
• emigration
• demography

Tags

NGSS.HS-LS2-2

The movement of organisms into a range is called

• immigration
• emigration
• population shift
• carrying capacity

Which of the following could describe a population that is decreasing in size?

• The birthrate and the death rate remain the same.
• The death rate is becoming lower than the birthrate
• The death rate is constant and the birthrate is increasing
• The death rate is becoming higher than the birthrate

If immigration and emigration numbers remain equal, which of these could cause a slowed growth rate?

• increased birthrate
• constant death rate
• decreased birthrate
• constant birthrate

Tags

NGSS.MS-LS1-5