Biology: Ecology

• Biology
• Upper Secondary (Key Stage 4)
• Further Education (Key Stage 5)
• GCSE

Biology: 

Ecology, Global Warming & Foodchains

Last Unit before Paper 1 Exam

Ecology Lesson Slides

Starter Question:

What is Ecology ?

Main subject Content

Exam Style Questions

General exam questions

Which environmental factor can decrease flood risk?

1. Limited land development
2. Ecological restoration
3. Rapid urbanization
4. Protected natural habitats

What is the role of green spaces in biodiversity conservation?

1. Disrupting natural ecosystems
2. Reducing species diversity
3. Providing habitats for various species
4. Supporting ecological balance

What is the process of studying a small area to estimate the number of organisms in a larger area called?

1. Ecological sampling
2. Ecosystem analysis
3. Biodiversity measurement
4. Population estimation

ecological footprint is

1. the effect you have on the planet
2. the population rate
3. another word for climate change
4. the use of green energy

Global Warming

What is Global Warming ?

Content Slides

Where have some of the strongest and earliest impacts of global warming occurred?

1. in the tropics
2. Impacts of global warming are distributed equally all over the planet.
3. in the poles
4. in the equator

Which gas was most abundant in the Earth's early atmosphere?

1. Water vapor
2. Carbon dioxide
3. Oxygen
4. Nitrogen

Which part of the cell is found in an animal cell and a plant cell.

1. Chloroplast
2. Nucleus
3. Cell wall
4. Vacuole

1. Animal cell
2. Plant cell

What is the term for all living organisms in an ecosystem?

1. Habitat destruction
2. Biotic factors
3. Abiotic factors
4. Population dynamics

What is the main cause of habitat destruction?

1. Climate change
2. Natural disasters
3. Human activities
4. Predator-prey relationships

What is the purpose of random sampling in biodiversity studies?

1. To count all individual organisms
2. To ensure a representative sample
3. To avoid studying small organisms
4. To study only the largest organisms

What is the process of studying a small area to estimate the number of organisms in a larger area called?

1. Ecological sampling
2. Ecosystem analysis
3. Biodiversity measurement
4. Population estimation

What is the term for a group of organisms of the same species living in the same area?

1. Biodiversity
2. Ecosystem
3. Community
4. Population

Deforestation

Think, pair, share...

What is Deforestation? 

Lesson Slides

Which human activity can contribute to flooding?

1. Water conservation
2. Sustainable agriculture
3. Wetland preservation
4. Deforestation

When there is deforestation..

1. there is less interception and so the soil becomes saturated more quickly, this leads to surface runoff and the water will reach the river more quickly
2. more interception will happen, soil will have chance to infiltrate in the soil and flow to the river underground
3. there are more impermeable surfaces so no interception and more surface runoff and water reaches the river more quickly
4. the soil can be eroded and washed into the river which can decrease the amount of water that can be held in the river, meaning it will be more likely to flood

The way of life of many tribes is under threat due to what?

1. Fires
2. Deforestation
3. Drought
4. Floods

What is the MOST common cause of deforestation?

1. Timber
2. Clearing for cities
3. Parks
4. Clearing for farming

What is the primary cause of the greenhouse effect?

1. Volcanic eruptions
2. Solar radiation
3. Deforestation
4. Increased concentration of greenhouse gases in the atmosphere

What are some natural sources of greenhouse gases?

1. Deforestation
2. Burning fossil fuels
3. Volcanic eruptions and decomposition of organic matter
4. Industrial processes

How do humans primarily impact the environment through the release of greenhouse gases?

1. Soil erosion
2. Water pollution
3. Deforestation
4. Climate change

What is deforestation?

1. The clearing of trees in a forested area
2. The practice of preserving forests
3. The process of making paper from recycled materials
4. The planting of new trees in a forested area

Deforestation Questions

Deforestation Questions

Food chains

The Food chain and trophic levels

Link to lesson slides

Additional Revision

See Google Classroom for slides on:-

Carbon Cycle and

Water cycle

What do you already know about biodiversity and ecological sampling?

What is the study of the relationships between organisms and their environment called?

1. Biology
2. Ecology
3. Chemistry
4. Physics

Which of the following is an example of a biotic factor?

1. Sunlight
2. Temperature
3. Trees
4. Water

What is the term for the process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen?

1. Transpiration
2. Photosynthesis
3. Decomposition
4. Respiration

Revision Time

Use this time to work with your friend to review a topic you need help revising for.

Good luck in your exam on Friday.