Theory

CH18 - VARIATION AND SELECTION

(a) Wheat is a type of grass that has been grown by humans for about 9000 years. The earliest variety is called emmer.Fig. 5.1 shows emmer wheat and a...

2013 Winter

2

Theory

CH18 - VARIATION AND SELECTION

An adaptive feature helps an organism survive in its environment.Adaptive features are inherited.Fig. 5.1 contains diagrams of three animals.(a) For e...

2017 Summer

2

Theory

CH18 - VARIATION AND SELECTION

(a) Polar bears live in and around the Arctic Circle, surviving in extremely cold conditions.Describe and explain one visible adaptive feature that en...

2017 Summer

2

Theory

CH18 - VARIATION AND SELECTION

(a) Sheep are important animals in many parts of the world as they produce meat, wool and milk.Table 10.1 describes some characteristics of five diffe...

2018 Summer

3

Theory

CH18 - VARIATION AND SELECTION

(a) There are two types of cell division, meiosis and mitosis.Cells produced by each type of division have different characteristics and functions.Com...

2017 Summer

2

Theory

CH18 - VARIATION AND SELECTION

(a) The theory of natural selection explains how one species can gradually evolve into a new species.The statements A to F describe six stages in the ...

2017 Summer

1

Theory

CH18 - VARIATION AND SELECTION

(a) Define the term variation............................................................................................................................

2019 Winter

2

Theory

CH18 - VARIATION AND SELECTION

(a) Organisms pass on their genetic information in their gametes.(i) State the name of the type of cell division that produces gametes...................

2018 Summer

2

Theory

CH18 - VARIATION AND SELECTION

Fig. 7.1 is a photograph of a large-scale monoculture of soybeans which are a crop plant.(a) Describe the disadvantages of large-scale monocultures......

2019 Winter

1

Theory

CH18 - VARIATION AND SELECTION

(a) The length of hair in cats is controlled by a single gene.• The allele for short hair is dominant – $H$• The allele for long hair is recessi...

2020 Spring

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Worms come to the soil surface after heavy rain. Which characteristic of living organisms does this show?

2013 Summer

1

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

Which animal is not an arthropod?

2013 Summer

2

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows a sea lion. Which labelled feature shows that this animal is a mammal?

2013 Summer

3

MCQ

CH1 - CHARACTERISTICS AND CLASSIFICATION OF LIVING ORGANISMS

The diagram shows an animal found in fresh water. Use the key to identify the animal.1 body divided into segments ............... go to 2 body not d...

2013 Summer

3

MCQ

CH8 - TRANSPORT IN PLANTS

Which statement about xylem is correct?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a bacterial cell.How is this cell different from a typical animal cell?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a plant cell. In which labelled part of the cell is sugar made?

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

Which of these tissues is not part of the organ with which it is paired?[Table_1]

2013 Summer

2

MCQ

CH2 - ORGANIZATION AND MAINTENANCE OF THE ORGANISM

The diagram shows a specialised cell. For which function is the cell adapted?

2013 Summer

2

MCQ

CH3 - MOVEMENT IN AND OUT OF CELLS

The diagram represents two liquids, separated by a membrane through which osmosis can occur. What movement of molecules will occur?

2013 Summer

2