Population Growth Models

What type of growth is shown in the diagram?

• exponential growth

• logistic growth 

• predator-prey cycle

• boom-bust curve

What is the carrying capacity for this sheep population?

• 8 million

• 25 million

• 6 million

• o million

Tags

NGSS.HS-LS2-1

Which statement best explains section X?

• competition does not occur between members of different species in the same habitat

• energy is used for interbreeding between members of different species

• the population has reached the carrying capacity of its environment

• a predator recycles the remains of dead organisms

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

In logistic growth, where is competition for resources highest

• During the beginning of population growth

• As the population is increasing exponentially

• When the population has reached its carrying capcity

Tags

NGSS.HS-LS2-1

What type of growth is this graph representing?

• Logistical Growth

• Exponential Growth

Make prediction based on hours 2-12.

• Exponential growth occured because there was an excess of water.

• Exponential growth occured because there was an excess of sugar.

• Logistial growth occured because there was an excess of sugar.

• Logistical growth occured because there was an excess of water.

• The yeast reached carrying capacity, because there was an excess of sugar.

Answer explanation

The flat line shows that the population has reached its carrying capacity at 6.0 mg/cc. Because of limited resources, the population stops growing when it hits the maximum number of individual that the environment can support.

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-2

The graph represents _____ of a population.

• logistic growth model

• exponential growth model

Which of the following is a characteristic of exponential population growth?

• Population grows at a constant rate.

• Population grows at an increasing rate.

• Population remains stable.

• Population decreases over time.

Tags

DOK Level 1: Recall

What type of growth is shown in the graph?

• Exponential growth

• Average growth

• Logistical growth

• Carrying Capapcity

Answer explanation

Logistical growth is an S-shaped curved on a graph. This means that the population grows over time but then slows down or stops growing when the population hits the carrying capacity.

Tags

NGSS.HS-LS2-2

Explain why the exponential growth model is not sustainable in the long term for most populations.

• Resources are unlimited.

• Environmental resistance factors are ignored.

• Carrying capacity is considered.

• Population growth rate decreases over time.

Tags

DOK Level 3: Strategic Thinking