Limiting Factors in Ecosystems

Priya, Liam, and Arjun are studying the growth of plants in their garden. Which of the following factors is NOT a limiting factor for plant growth?

• Water

• Sunlight

• Food

• Space

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

In a forest ecosystem, Mia, Avery, and Charlotte are studying the impact of limiting factors. What do limiting factors primarily do in this context?

• Separate biotic factors from abiotic factors

• Determine which is the predator and which is the prey

• Determine which natural disasters will hit the forest

• Limit how many organisms live in the forest ecosystem

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Scarlett, Isla, and Aiden are studying the effects of abiotic limiting factors on an ecosystem. Which of the following factors are they most likely to focus on?

• Water, space, and climate.

• The decomposers in an ecosystem.

• Different populations

• The populations of producers in a given habitat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Avery, Henry, and Maya are studying a population of coyotes living in a habitat with plentiful food and no predators. According to the graph they are analyzing, what is happening to the coyote population size at the one year mark?

• The population size is increasing.

• The population size is decreasing.

• The population size is remaining the same.

• The population size cannot be inferred from the graph.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a wildlife reserve, Elijah, Benjamin, and Mia observed the coyote population over time. They noticed that the population size eventually stopped increasing. Which of the following explains what happened to the coyote population size when it reached its carrying capacity and why?

• The population size continued to increase because the ecosystem has not changed.

• The population size stopped increasing because it had reached the largest number of coyotes that the ecosystem could support.

• The population size became zero because the ecosystem could no longer support the coyote population.

• The size can no longer be inferred from the graph.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Scarlett observed that the presence of predators in a forest limits how large a deer population can grow. Is this observation correct?

• True

• False

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Emma, Grace, and Abigail are discussing whether a disease can reduce the size of a population quickly. Emma thinks it cannot. Is Emma's statement correct?

• True

• False

Tags

NGSS.MS-LS2-4

When the city where Aria, Nora, and William live experiences a population growth so large that it causes damage to the environment, this is called:

• carrying capacity

• limiting factors

• extinction

• overpopulation

Tags

NGSS.MS-ESS3-4

Liam, Jackson, and James are studying different species in a forest. They notice that all the populations of different species live together in the same area. This is known as a _____.

• population

• community

• organism

• ecosystem

Anika, Elijah, and Samuel are studying the interactions between living organisms and their physical environment in a forest. They are observing all of the biotic and abiotic factors in the same area. This is called:

• ecosystem

• community

• ecosphere

• species