Apes

growth shows growth of a population under environmental constraints (carrying capacity-K) that sets a maximum population size

• logistic

• exponential

• niche

• uniform

Answer explanation

Logistic growth describes how a population grows rapidly until it reaches a limit set by environmental constraints, known as carrying capacity (K). This contrasts with exponential growth, which does not account for such limits.

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NGSS.MS-LS2-1

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.

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NGSS.MS-LS2-4

Represents the biotic potential of the species

• A

• B

• D

• E

Answer explanation

The biotic potential of a species refers to its maximum reproductive capacity under optimal conditions. Choice A correctly represents this concept, highlighting the species' ability to reproduce and grow in a suitable environment.

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Click density dependent factor(s).

• competition for resources

• predator-prey relationships

• parasitism and disease

• weather

Answer explanation

Density dependent factors include competition for resources, predator-prey relationships, and parasitism and disease, as they affect population size based on the density of the population. Weather is density independent.

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NGSS.MS-LS2-2

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What does the graph represent?

• Emigration

• Exponential growth

• Immigration

• Logistic Growth

Answer explanation

The graph represents exponential growth, characterized by a rapid increase in population or quantity over time, without any limiting factors. This is evident from the curve's shape, which rises steeply.

Which factor is a density-dependent limiting factor on the population of a species?

• seasonal variation

• natural disasters

• unusual weather

• predation

Answer explanation

Predation is a density-dependent limiting factor because it affects population size based on the density of the prey. As prey populations increase, predators can consume more, impacting the prey's population growth.

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NGSS.MS-LS2-4

What is happening at the 'A' on the graph?

• the population overshoots above the carrying capacity

• the population stops growing

• growth begins to slow down due to limited resources

• growth is speeding up due to an abundance of resources

Answer explanation

At point 'A', the population growth begins to slow down due to limited resources, indicating that the environment can no longer support the rapid increase in population.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

To measure population density, you must divide the number of individuals living in a defined space by the

• area of the space

• birth and death rates

• carrying capacity

• height of the space

Answer explanation

To measure population density, you divide the number of individuals by the area of the space they occupy. This gives a clear understanding of how crowded a space is, making 'area of the space' the correct choice.

Which limiting factor is independent of the number of individuals in a population?

• competition

• parasitism/disease

• stress

• natural disasters

Answer explanation

Natural disasters are external events that affect populations regardless of their size, making them independent of the number of individuals. In contrast, competition, parasitism, and stress are influenced by population density.

Which of the following apes is known for its ability to use sign language to communicate with humans?

• Chimpanzee

• Gorilla

• Orangutan

• Gibbon