Year 9 cycle 1 Science KA

Idenitfy which of the following is an abiotic factor.

• Wind
• Soil
• Rain
• Sunlight

Select the correct definiton for a "biotic factor".

• Living component that affects another organism
• Chemical substance that has no effect on living things
• Inanimate object that has no impact on living organisms
• Non-living component that affects another organism

Match the following organisms with their trophic level.

• Primary consumer

• Thrush

• Producer

• Fox

• Apex predator

• Lettuce

• Secondary consumer

• Snail

Idenitfy the correct definiton of an "ecosystem".

• A group of unrelated organisms living together in a specific area
• A community of living organisms and the nonliving components of their environment, interacting as a system.

• A single species living in a specific environment
• A collection of nonliving components in a specific area

Identify which of the following organisms have a mutualistic relationship.

• Bees and flowers
• Cats and mice
• Sharks and seals
• Lions and zebras

Idenitfy which piece of equipment would be used when surveying the abundance of a flower on the school field.

• Quadrat
• Trowel
• Microscope
• Thermometer

Select the correct description of a belt transect.

• A straight line along which the organisms are counted or sampled.
• A zigzag pattern for counting or sampling organisms.
• A random path through the study area.
• A circle around which the organisms are counted or sampled.

Describe the role of plants in the carbon cycle.

• Plants absorb oxygen during photosynthesis and release carbon dioxide back into the atmosphere.
• Plants have no role in the carbon cycle.
• Plants absorb nitrogen during photosynthesis and release carbon monoxide back into the atmosphere.
• Plants absorb carbon dioxide during photosynthesis and release oxygen back into the atmosphere.

Descrtibe the role of decomposers in the nitrogen cycle.

• Decomposers break down organic matter and release nitrogen back into the soil as ammonia.
• Decomposers release carbon dioxide into the atmosphere
• Decomposers convert nitrogen into oxygen
• Decomposers have no role in the nitrogen cycle

State the name given to the provcess through which water condenses and falls back to the ground as part of the water cycle.

• Sublimation
• Transpiration
• Precipitation
• Evaporation