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

The diagram illustrates some of the processes carried out by living organisms. Which characteristic of living organisms is represented by arrow X? ...

2015 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

What is a correct way of naming a species, according to the binomial system? A. Homo sapiens B. Homo Sapiens C. human being D. sapiens

2015 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows four arthropods.[Image_1: Diagram of Pediculus ×20, Anopheles ×10, Dermacentor ×7, Carcinus ×0.5]How many of these arthropods ar...

2015 Summer

Theory

CH4 - BIOLOGICAL MOLECULES

The key can be used to distinguish between four different chemical substances. Use the key to identify which substance could be a protein. 1 contain...

2015 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows two guard cells from a leaf.Which labelled part would also be found in liver cells?

2015 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows part of a leaf in cross-section.Structures X and Y are both part of the sameA. cell.B. organ.C. tissue.D. vessel.

2015 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. Which features show that it is a plant cell?A It has a cell wall and a vacuole.B It has a nucleus and cytoplasm.C It h...

2015 Summer

Theory

CH8 - TRANSPORT IN PLANTS

In a section through a plant, a student found a group of long, microscopic structures. The structures lacked end walls, cytoplasm and nuclei.Which ide...

2015 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell cut in half. What does this diagram indicate about the structure of this cell?A The cell has a cell wall.B The ...

2015 Summer

Theory

CH6 - PLANT NUTRITION

How do carbon dioxide and oxygen move in and out of a mesophyll cell?A. active transportB. diffusionC. respirationD. transpiration

2015 Summer