Theory

CH18 - VARIATION AND SELECTION

(a) Define the term gene. ...............................................................................................................................

2009 Summer

Theory

CH18 - VARIATION AND SELECTION

A man who was blood group A and a woman who was blood group B had four children, each with a different blood group A, B, AB and O. Which type of vari...

2009 Winter

Theory

CH18 - VARIATION AND SELECTION

(a) Describe the two root systems shown in Fig. 2.1 and explain how each is an adaptation for survival in a desert ecosystem.[4](b) Describe and expla...

2010 Summer

Theory

CH18 - VARIATION AND SELECTION

(a) Describe the two root systems shown in Fig. 2.1 and explain how each is an adaptation for survival in a desert ecosystem. [4]........................

2010 Summer

Theory

CH18 - VARIATION AND SELECTION

(a) Write a balanced equation for photosynthesis using symbols. .........................................................................................

2011 Summer

Theory

CH18 - VARIATION AND SELECTION

(a) State three characteristic features of birds that are visible in Fig. 5.1.1 .........................................................................

2011 Winter

Theory

CH18 - VARIATION AND SELECTION

Two species of beetle, Tribolium castaneum and T. confusum, can infest and eat stored flour.In an investigation these two species were kept together i...

2011 Winter

Theory

CH18 - VARIATION AND SELECTION

Which types of variation can be inherited?[Table_1]

2012 Summer

Theory

CH18 - VARIATION AND SELECTION

Which types of variation can be inherited?[Table_1]variation caused by genesvariation caused by the environmentA✔✔B✔✘C✘✔D✘✘

2012 Summer

Theory

CH18 - VARIATION AND SELECTION

(a) Explain the meaning of the term transpiration........................................................................................................

2012 Winter

Theory

CH7 - HUMAN NUTRITION

Why does the energy needed by a human increase during the first ten years of life?A. Coordination and responses improve.B. Energy is needed for gamete...

2014 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which feature is characteristic of both annelids and arthropods? A) compound eyes B) jointed limbs C) segmented bodies D) wings

2014 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which features do animal cells share with plant cells? [Table_1]

2014 Summer

Theory

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal. Use the key to identify the animal.1 wings present ............................................ go to 2wings absent ........

2014 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which pair of statements about a plant cell is correct?[Table_1][Table_1]:| | outer surface of the cell | position of sap vacuole ||---|----...

2014 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a cell. Which structure is not present?A. cell membraneB. cell wallC. cytoplasmD. nucleus

2014 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a section through a root.What are the levels of organisation of the labelled structures?[Table_1]

2014 Summer

Theory

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which structures contain a cell nucleus?[Table_1]Table Key:✓ = nucleus✗ = no nucleus

2014 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram shows a cell. [Image_1: Diagram of a cell] Which type of cell does the diagram show? A. an animal cell in a concentrated solution of sa...

2014 Summer

Theory

CH3 - MOVEMENT IN AND OUT OF CELLS

Two identical cylinders, 40 mm long, are cut from a potato. One (W) is placed in water and the other (X) is placed in a concentrated sugar solution.Wh...

2014 Summer