Human Impact on Ecosystems and Biodiversity

Human Impact on Ecosystems and Biodiversity

Assessment

Interactive Video

Biology, Science, Chemistry

9th - 10th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial discusses the impact of human activities on the environment, focusing on biodiversity and pollution. It explains biodiversity as the variety of life forms in an area, measured by species and genetic diversity. Human activities like pollution disrupt ecosystems, leading to issues such as smog, acid precipitation, and global warming. The concept of biomagnification is introduced, describing how pollutants become more concentrated in organisms higher up the food chain, affecting larger organisms, including humans. A visual example illustrates this process, showing how chemicals accumulate in the food chain.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the lesson discussed in the introduction?

The impact of humans on biodiversity

The history of human civilization

The development of technology

The evolution of species

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term 'biodiversity' refer to?

The genetic similarity among species

The number of humans in a community

The number of ecosystems in a region

The variety of life forms in an area

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a measure of biodiversity?

Climate variation

Economic growth

Population density

Species diversity

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one of the human activities that disrupt ecosystems?

Pollution

Conservation

Recycling

Afforestation

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT an effect of human activities on the environment?

Smog

Acid precipitation

Ozone thinning

Increased biodiversity

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does biomagnification refer to?

The growth of plant life in polluted areas

The spread of diseases among species

The concentration of chemicals in organisms higher up the food chain

The increase in population size

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do chemicals become more concentrated in organisms through biomagnification?

By being passed up the food chain

Through direct absorption from the air

Through photosynthesis

By being diluted in water

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