Paired Statement Keys

1. 1. Leaf made up of one part: go to 2.

2. Leaf made up of several smaller parts: go to 3.

2. 2. Outer leaf edge is wavy: Oak.

3. Outer leaf edge is smooth: go to 4.

5. 3. Leaflets attached at a single point on the leaf stalk: Horse Chestnut

6. Leaflets attached in pairs on the leaf stalk: Rowan.

8. 4. Leaf is as wide as it is long: Beech

9. Leaf is longer than it is wide: Laurel

• Oak

• Horse Chestnut

• Rowan

• Beech

• Laurel

1. 1. Leaf made up of one part: go to 2.

2. Leaf made up of several smaller parts: go to 3.

2. 2. Outer leaf edge is wavy: Oak.

3. Outer leaf edge is smooth: go to 4.

5. 3. Leaflets attached at a single point on the leaf stalk: Horse Chestnut

6. Leaflets attached in pairs on the leaf stalk: Rowan.

8. 4. Leaf is as wide as it is long: Beech

9. Leaf is longer than it is wide: Laurel

• Oak

• Horse Chestnut

• Rowan

• Beech

• Laurel

1. 1. Flower colour is yellow: go to 2.

2. Flower colour is not yellow: A

2. 2. Height of the plant can be over 100cm: Ragwort.

3. Height of the plant is under 100cm: B

5. 3. Flowering period lasts only 3 months: Meadow grass

6. Flowering period is longer than 3 months: C

• A = Pink champion

  B = go to 3

  C = buttercup

• A = Pink champion

  B = Buttercup

  C = go to 3

• A = go to 3

  B = Buttercup

  C = Pink champion

• A = go to 3

  B = Pink champion

  C = Buttercup

1. 1. Six legs: Hexapoda

2. More than six legs: go to 2

2. 2. 8 legs: go to 3

3. More than 8 legs: go to 4

5. 3. Curved sting: Dromopoda

6. No curved sting: Arachnida

8. 4. 1 pair of legs per body segment: Chilopoda

9. 2 pairs of legs per body segment: Diplopoda

• Dromopoda

• Chilopoda

• Diplopoda

• Arachnida

1. Use the key below to identify the above cells:

3. 1. Nucleus absent: go to 2

4. Nucleus present: go to 3

2. 2. Diameter greater than 0.005mm: red blood cell

3. Diameter less than 0.005mm: platelet

5. 3. Nucleus is circular: lymphocyte

6. Nucleus is not circular

• A = Macrophage

  B = Red blood cell

  C = Lymphocyte

  D = Platelet

• A = Macrophage

  B = Red blood cell

  C = Lymphocyte

  D = Platelet

• A = Lymphocyte

  B = Platelet

  C = Red blood cell

  D = Macrophage

• A = Macrophage

  B = Lymphocyte

  C = Red blood cell

  D = Platelet