Secondary 2 Science: Interactions within Ecosystems Page 17 Quiz

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Questions and Answers

What are some types of interactions that can affect the stability of an ecosystem?

Competition and cooperation (correct)

Adaptation and evolution

Photosynthesis and respiration

Mitosis and meiosis

Which of the following processes is NOT involved in maintaining a stable ecosystem?

Pollution (correct)

Succession

Eutrophication

Predation

Why does excessive plastic use harm the environment?

It enhances biodiversity

It promotes clean air

It increases soil fertility

It contaminates water bodies (correct)

How can the excessive use of plastic bags impact marine animals?

They may be mistakenly consumed by marine animals Signup and view all the answers

What is one initiative that can help reduce plastic waste?

Promote reusable alternatives to plastic Signup and view all the answers

Which of the following is an example of a human impact on ecosystem stability?

Introducing invasive species that disrupt the ecosystem balance Signup and view all the answers

Why is it important to conserve the environment for maintaining ecosystem stability?

To help sustain the organisms living in the ecosystem Signup and view all the answers

What are some initiatives in Singapore to reduce excessive use of plastics?

Charging consumers for the use of disposable plastic bags Signup and view all the answers

What is a common effect of pollution on an ecosystem?

Damaging the environment by making it unfit for life Signup and view all the answers

How can growing crops and livestock for food negatively affect the environment?

Deplete minerals in the soil and other Earth resources Signup and view all the answers

How do microplastics end up in a human's diet based on the text?

By eating marine organisms that have consumed microplastics Signup and view all the answers

Which initiative mentioned in the text aims to reduce plastic waste pollution?

Encouraging the reduction of plastic usage Signup and view all the answers

Which human action is an example of wasting Earth's limited resources?

Throwing away edible food Signup and view all the answers

Why is it important to reduce negative impacts on the environment caused by human actions?

To protect biodiversity and ecosystem stability Signup and view all the answers

How do pollutants contribute to ecosystem destabilization?

By causing harm to the environment and making it unsuitable for life Signup and view all the answers

What is the purpose of Bloobin as mentioned in the text?

To reduce plastic waste pollution by encouraging recycling Signup and view all the answers

What is a key impact of human activities on ecosystem stability according to the text?

Causing harm to the environment through activities like pollution Signup and view all the answers

How do supermarkets charging for disposable plastic bags contribute to reducing plastic use?

By incentivizing consumers to bring their own reusable bags Signup and view all the answers

Study Notes

Ecosystem Interactions

Various interactions, such as predation, competition, and symbiosis, play crucial roles in influencing ecosystem stability.
Changes in species populations and their relationships can lead to shifts in ecosystem balance and health.

Processes Not Involved in Ecosystem Stability

Certain human activities, such as urbanization and industrialization, do not contribute to maintaining stable ecosystems but rather disrupt them.

Effects of Plastic Use on the Environment

Excessive plastic use leads to pollution and waste, adversely impacting wildlife and natural habitats.
Plastics take hundreds of years to decompose, causing long-lasting environmental issues.

Impact of Plastic Bags on Marine Animals

Marine animals may ingest plastic bags, mistaking them for food, leading to internal injuries or starvation.
Entanglement in plastic waste can also result in injury or death for various marine species.

Initiative to Reduce Plastic Waste

Initiatives like banning single-use plastics and promoting reusable alternatives are essential in tackling plastic waste issues.

Human Impact on Ecosystem Stability

Deforestation, pollution, and urban sprawl are clear examples of human impact that destabilize ecosystems through habitat destruction and resource depletion.

Importance of Environmental Conservation

Conserving the environment is vital for maintaining biodiversity, which sustains ecosystem services essential for human survival.

Singapore Initiatives Against Plastic Use

Singapore has implemented measures such as plastic bag charges, public awareness campaigns, and beach clean-ups to combat plastic pollution.

Common Pollution Effects on Ecosystems

Pollution can lead to a loss of biodiversity, toxic accumulation in food webs, and the degradation of natural habitats.

Agriculture's Negative Environmental Impact

The intensive farming of crops and livestock can result in habitat loss, soil degradation, and increased greenhouse gas emissions.

Microplastics in Human Diet

Microplastics can infiltrate food chains, eventually making their way into human diets through seafood consumption and water sources.

Initiative to Reduce Plastic Waste Pollution

Initiatives like the "Keep Singapore Clean" campaign focus on reducing littering and encouraging recycling.

Wasting Earth's Resources

Overconsumption of natural resources, like water or energy, exemplifies human actions that waste limited Earth's resources.

Importance of Reducing Negative Environmental Impacts

Mitigating harmful human activities is crucial for promoting ecological balance and ensuring resource availability for future generations.

Pollutants and Ecosystem Destabilization

Pollutants can disrupt food chains, alter habitats, and decrease species diversity, leading to overall ecosystem destabilization.

Purpose of Bloobin

Bloobin aims to raise awareness of plastic waste and encourage the adoption of eco-friendly practices in everyday life.

Key Impacts of Human Activities

Human activities, such as pollution and habitat destruction, are key factors that compromise the stability and health of ecosystems.

Supermarkets and Plastic Bag Charges

Charging for disposable plastic bags incentivizes consumers to choose reusable options, thereby reducing plastic consumption and waste.

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Description

Test your knowledge on the topic of how plastics might end up in a human's diet based on the flow of nutrients in a food chain. Explore the journey of plastics from improper disposal to becoming microplastics consumed by organisms.