Changes in Ecosystems/Relationships

What are the types of symbiotic relationships?

• Mutualism, Commensalism, Parasitism

• Predation, Herbivory, Competition

• Commensalism, Amensalism, Neutralism

• Mutualism, Competition, Amensalism

Tags

NGSS.MS-LS2-2

How does commensalism differ from mutualism?

• In commensalism, one organism benefits and the other is unaffected, while in mutualism, both organisms benefit.

• In commensalism, both organisms are harmed, while in mutualism, both organisms benefit.

• In commensalism, one organism is harmed and the other benefits, while in mutualism, both organisms are unaffected.

• In commensalism, both organisms benefit, while in mutualism, one organism benefits and the other is unaffected.

Tags

NGSS.MS-LS2-2

Based on the information provided in the worksheet, which of the following is a correct cause and effect example of competition in a community, besides the one given: "A population of lions grows too large to share their current territory"?

• A population of deer depletes the available food resources, leading to starvation.

• A group of squirrels shares a tree without any issues.

• Fish in a pond increase in number without affecting the algae.

• Birds migrate to different regions without competing for nesting sites.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Explain how do sudden catastrophes such as the eruption of Mount St. Helens change the landscape ecosystems?

• They have no significant impact on the landscape ecosystems.

• They can drastically alter the landscape and create new ecosystems.

• They primarily affect the animal populations, not the landscape.

• They result in minor changes that are often quickly reversed.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-LS2-4

How do natural catastrophic events, such as volcanic eruptions, affect the climate on Earth?

• They have no significant impact on the climate.

• They can lead to temporary cooling effects.

• They can increase global temperatures.

• They only affect the local environment, not the global climate.

Tags

NGSS.MS-ESS3-2

Which of the following is an example of secondary succession in a community?

• A forest recovering after a wildfire

• A newly formed volcanic island

• A lake filling in to become solid ground

• A glacier receding and exposing bare rock

What are two signs of a mature ecosystem?

• High biodiversity and stable populations

• Low biodiversity and unstable populations

• High pollution levels and rapid species turnover

• Constant temperature fluctuations and high human activity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is a benefit of biodiversity to an ecosystem?

• Increases resilience against environmental changes

• Decreases the variety of species

• Reduces the productivity of the ecosystem

• Enhances pollution levels

Tags

NGSS.MS-LS2-5

In mutualism, both species ​ (a)   , whereas in competition both species are ​ (b)   . Competition often leads to the evolution of new ​ (c)   .

• benefit
• harmed
• traits
• colors

Tags

NGSS.MS-LS2-2

Match the following types of relationships to their descriptions:

• Commensalism

• One organism benefits at the expense of the other

• Mutualism

• Both organisms are harmed by fighting over a resource

• Competition

• One organism benefits while the other remains neutral

• Parasitism

• Both organisms benefit (help each other)