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

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which characteristic is shown when a person smells a gas in the air?A excretionB movementC respirationD sensitivity

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Four illustrations labeled Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of the...

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

An organism has dry scales covering its body. To which vertebrate group does it belong? A: amphibian B: fish C: mammal D: reptile

2011 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 has legs .......................... go to 2 has no legs ...................... go ...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows four specialised cells.Which feature is not common to all of these cells?A. cell membraneB. cytoplasmC. diploid number of chromosome...

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell.Which labelled structures are found in plant cells but not in animal cells?A P and QB Q and RC R and SD S and T

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows another plant cell.Which feature shows that it is a palisade cell?A a large nucleusB a large vacuoleC a thick cell wallD many chloro...

2011 Summer

Theory

CH6 - PLANT NUTRITION

Which structures are adapted for supporting a plant?A. phloem tissuesB. root hair cellsC. stomataD. xylem vessels

2011 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which describes the structure and function of a red blood cell? [Table_1]

2011 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Boiling potatoes destroys their cell membranes. A peeled, boiled potato strip is placed in a concentrated solution of salts.What takes place?[Table_1]...

2011 Summer