Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food chain.A disease reduced the number of consumer 2.What effect would this be likely to have on the numbers of consumer 1 and co...

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a food web. Which arrow does not show the direction of energy flow?

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a tree and organisms associated with it.Which labelled organism is a producer?

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows a simplified carbon cycle. [Image_1: Diagram of carbon cycle]What is process X?A combustionB decayC excretionD photosynt...

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows the release of a substance into the atmosphere from different sources. What is this substance?A carbon dioxideB oxygenC ureaD water ...

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The graph shows the change in the numbers of a species of small mammal living on an island. Which letter represents the phase where the population gro...

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

An agricultural student investigated nutrient cycles on a farm where cattle are kept for milk. The farmer grows grass and clover as food for the cattl...

2009 Summer

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows some food relationships in a woodland area.Which of the labelled animals are in competition with seed-eating insects for their food?

2009 Winter

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram represents a pyramid of biomass within an ecosystem. [Image_1: Diagram showing a pyramid with labels for carnivores, herbivores, producers...

2009 Winter

Theory

CH19 - ORGANISMS AND THEIR ENVIRONMENT

The diagram shows the flow of energy through four organisms in a food chain. Which organism is a producer?

2009 Winter

Theory

CH11 - GAS EXCHANGE IN HUMANS

(a) Fig. 1.1 is a diagram of the human gas exchange system. (i) Identify the structures labelled A, B and C in Fig. 1.1.A ...............................

2020 Spring

Theory

CH9 - TRANSPORT IN ANIMALS

(a) Fig. 2.1 shows the transfer of materials between blood and tissues.(i) Complete Table 2.1 by:• stating the names of the fluids• writing yes if...

2020 Spring

Theory

Role of Adrenaline

(a) One of the characteristics of living organisms is sensitivity. Define the term sensitivity. (2) (b) State the names of two sense organs. (1) (c...

2020 Spring

Theory

CH7 - HUMAN NUTRITION

(a) Describe the similarities and differences between marasmus and kwashiorkor.similarities .............................................................

2020 Spring

Theory

CH16 - REPRODUCTION

(a) Mitosis is a type of nuclear division.Fig. 5.1 is a series of photomicrographs showing a cell dividing by mitosis.(i) State the change that has oc...

2020 Spring

Theory

CH21 - HUMAN INFLUENCES ON ECOSYSTEMS

(a) Atlantic cod, Gadus morhua, is a type of fish that is an important resource for commercial fishing.Fig. 6.1 shows the estimated mass of Atlantic c...

2020 Spring

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows what happened in an experiment with plant seedlings. Which characteristic of living things made the seedlings grow towards the lig...

2020 Summer

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

A rat has the scientific name $Rattus$ $rattus$.What do the two parts of this name refer to?

2020 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells.Which label shows the cell wall?

2020 Summer

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagrams show different levels of organisation in a plant. Which sequence shows the levels of organisation in order from smallest to largest?

2020 Summer