APES Unit 3 (3.1-3.5)

What growth model has an J-shaped curve?

• Logistic

• Exponential

Answer explanation

The exponential growth model is characterized by a J-shaped curve, indicating rapid growth as resources are unlimited. In contrast, the logistic model shows an S-shaped curve, reflecting growth that levels off as resources become limited.

What growth model has an S-shaped curve?

• Logistic

• Exponential

Answer explanation

The logistic growth model is characterized by an S-shaped curve, representing how populations grow rapidly at first, then slow as they approach carrying capacity. In contrast, exponential growth does not exhibit this S-shape.

When a population has unlimited resources, and it continues to grow to its FULL LIVING POTENTIAL, it is called

• Peak

• Top shelf

• Resource controlled limit

• Biotic potential

Answer explanation

When a population has unlimited resources and grows to its full living potential, it is referred to as 'biotic potential.' This term describes the maximum reproductive capacity of an organism under ideal conditions.

factors that affect a population depending on its size​

- these include food, predation, parasitism, and disease​

• Density-Dependent factor

• Density-Independent factors

Answer explanation

Density-dependent factors, like food availability, predation, parasitism, and disease, directly affect a population's size. As population density increases, these factors become more significant, influencing growth and survival.

affect all populations similarly regardless of population size.​ Examples include: natural disasters, rapid climate changes (drought or floods), and human activity and disturbances ​

• Density-Dependent factors

• Density-Independent factors

Answer explanation

Density-independent factors affect all populations equally, regardless of size. Natural disasters, climate changes, and human disturbances are examples that impact populations without considering their density.

Which population has the greatest potential for rapid growth?

• Populations with a large number of middle aged individuals

• Older populations

• Populations with large numbers of young offspring

• None of these

Answer explanation

Populations with large numbers of young offspring have the greatest potential for rapid growth because they can reproduce quickly, leading to exponential increases in population size.

Tags

NGSS.MS-LS4-4

Any thing or organism that regulates the size of a population of another organism is known as __________.

• a limiting measure

• a limiting factor

• factorization

• materialization of precipitation

Answer explanation

A limiting factor is any thing or organism that controls the size of a population of another organism. It includes resources like food, water, and space, which can restrict population growth.

Tags

NGSS.MS-LS2-4

Which of the following are density dependent factors?

• competition for resources

• predation

• disease

• natural disasters

Answer explanation

Density dependent factors, like competition for resources, predation, and disease, increase in effect as population density rises. In contrast, natural disasters are density independent, affecting populations regardless of their size.

Tags

NGSS.MS-LS2-4

Which of the following are examples of a density independent factors?

• forest fire

• seasonal cycles

• storms

• disease

Answer explanation

Density independent factors, like forest fires, seasonal cycles, and storms, affect populations regardless of their density. In contrast, disease is density dependent, as it spreads more easily in denser populations.

Tags

NGSS.MS-ESS3-2

What is the carrying capacity for this sheep population?

• 1.8 million

• 1.25 million

• 1.6 million

• 1.o million

Answer explanation

The carrying capacity of a population is the maximum number of individuals that an environment can support sustainably. In this case, the correct carrying capacity for the sheep population is 1.6 million.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1