Population Dynamics and Growth Factors

Mr. Bebe explains population growth, focusing on factors influencing growth and decline, such as immigration, birth, death, and emigration. He describes exponential growth, characterized by rapid increase due to abundant resources, and logistic growth, which stabilizes at carrying capacity. Limiting factors, both density-dependent and independent, are discussed, including predation, competition, weather, and human activities.

What are the two positive factors that contribute to population growth?

• Predation and competition

• Emigration and death

• Immigration and birth

• Parasitism and disease

Which type of growth is characterized by a rapid increase due to abundant resources?

• Linear growth

• Cyclic growth

• Exponential growth

• Logistic growth

What happens to a population when it reaches its carrying capacity?

• It becomes extinct

• It levels off

• It declines rapidly

• It continues to grow exponentially

What is the term for the maximum number of individuals an environment can support?

• Exponential limit

• Growth ceiling

• Carrying capacity

• Population threshold

What typically happens to a population that overshoots its carrying capacity?

• It continues to grow

• It stabilizes immediately

• It experiences a decline

• It becomes extinct

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

• Human activities

• Weather

• Natural disasters

• Predation

Which factor is NOT density-dependent?

• Weather

• Parasitism

• Disease

• Competition

What is the effect of competition on a dense population?

• It stabilizes the population

• It increases population growth

• It decreases population growth

• It has no effect

How do density-independent factors affect population growth?

• They only affect sparse populations

• They have no effect on population growth

• They affect growth regardless of population density

• They only affect dense populations

Which of the following is an example of a density-independent factor?

• Natural disasters

• Competition

• Predation

• Parasitism