1. Specimen A, B, C and D are animal feeds.

a) Give a situation when each of the specimens may be used for feeding animals.

A......................................................................

B...................................................................

C..................................................................

D...................................................................

b) Which one of the specimens would best meet the nutrient requirements of an animal if used alone? Explain your answer.

c) Give two effects of feeding specimen D alone to animals.

2. Specimens G and H are crop plants affected by diseases

a) (i) Identify the disease that has affected each crop.

G......................................................................................

H.........................................................................................

(ii) Describe the observable effects of the disease on each crop.

G............................................................................................

H...............................................................................................

b) Remove one complete leaf from each specimen. Draw and label what is observed, in the space provided below.

c) Give two non - chemical means you would use to control the disease on specimen G.

3. Specimen L₁ and L₂ are parts of the digestive system of farm animals.

a) Identify the specimens.

L_{1.............................................................................................................................}

L_{2............................................................................................................................}

b) From the structure of the specimens, suggest the type of farm animals each specimen was obtained from

L_{1..............................................................................................................................}

L_{2...............................................................................................................................}

c) Examine the contents of each specimen and describe them.

(i) Contents of specimen L₁

(ii) Contents of specimen L₂

d) State two structural differences between L₁ and L₂

e) From the structure of L₁ and L₂ and their contents, give the functions of each specimen in the digestive system of the animal it belongs.

(i) L_{1...................................................................................................}

(ii) L_{2...................................................................................................}

4. a) (i) Identify specimens M and N provided.

M.............................................................................................

N..............................................................................................

(ii) State two functions of each specimen.

M..........................................................................................

N..............................................................................................

b) How are the structures of the specimens suited for their functions?

(i) M..........................................................................................

(ii) N...............................................................................................

c) State four maintenance practices that are carried out on the specimens.

5. You are provided with specimens P, Q, R and S.

a) Examine the specimen and record the identity and importance of each specimen to animal and crop production, in the table below.

 

Specimen	Identity	Importance to animal production	Importance to crop production
P
Q
R
S

b) Bend until you break the stem of each specimen. Record you observations, and from the observations, classify the specimen in the table below.

 

Specimen	Observation	Classification
P
Q
R
S