Populations 5.2

Any circumstance that decreases the growth or size of a population is known as ______________.

• a growth factor

• the carrying capacity

• a limiting factor

• the growth rate.

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NGSS.MS-LS2-4

In the Paramecia lab that we conducted, we studied the effect of competition on two different species. Which type of limiting factor is competition classified as?

• density independent (abiotic)

• density dependent (biotic)

• logistic

• carrying capacity

Tags

NGSS.MS-LS2-2

Water lilies do not grow in desert sand because water availability to these plants in a desert is a

• competition factor

• logistic growth curve

• carrying capacity

• limiting factor

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS1-5

Study the graph provided. What is the most likely cause of the decrease in the moose population immediately after 1995?

• Poisonous plants killed off many moose.

• Many moose reached old age and died.

• Overcrowding caused competition in the moose population.

• A decrease in predators caused competition in the moose population.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

Each of the following is a density-dependent (biotic) limiting factor EXCEPT...

• competition

• temperature

• parasitism

• disease

Tags

NGSS.MS-LS2-4

Which of the following would be least likely to be affected by a density-dependent limiting factor?

• a population with a high birth rate

• a small, scattered population

• a large, dense population

• a population with a high immigration rate

Tags

NGSS.MS-LS2-4

Which of the following is a density-independent limiting factor?

• competition for food

• predator/prey relationships

• the eruption of a volcano

• parasitism and disease

What is the approximate carrying capacity of the deer population on Walla Walla Island?

• 100

• 60

• 80

• 15

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

During our virtual study of two paramecia, what limiting factor was the result of the data shown in this population growth graph?

• parasitism

• disease

• competition

• predation

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

In the lab setup shown, what was the manipulated variable in our Paramecia study?

• P. caudatum grown alone

• P. aurelia grown alone

• Two paramecia grown together

• Adding rice to each test tube

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-2