Study specimen D and E and answer questions
(a) and (b).
(a)i Name the specific habitats of each of specimens D and E.
D:…………………………………….
E:…………………………………….
(i) State five observable structural difference between specimens D and E.
(i) What is the behavioural adaptation that specimens D and E exhibit? (b) State two ways by which specimen E is of economic importance.
Study specimen G and answer questions 2(c) to (e).
(c) On the table below, name the types of teeth present in specimen G and state one function each of the types of teeth named.
| types of teeth | one function |
(d)(i) Name the mode of feeding of the organism from which specimen G was obtained.
(ii)(d) Name the mode of feeding of the organism from which specimen G was obtained.
State three ways by which specimen G adapts its organism to the mode of feeding stated in (d)(i)
(e) Name two mineral elements which are needed for the proper functioning of specimen G in the body.
Explanation
(a)(i) habitats of specimens of D and E
D: Termatarium/anthill/old logs of trees/mounds dead tree stumps
E: nest/hive
(ii) observable structural differences between specimens D and E
| D/soldier termite | E/honeybee |
| presence of prominent/large/mandible | presence of poorly developed/less prominent mandible |
| stingvabsent | sting present |
| pollen comb | wing present |
| wing absent |
presence of pollen basket |
| absence of prong | presence of prong |
| absence of proboscis | presence of proboscis |
| body not hairy[smooth] | body is hairy |
| absence of eye blind | presence of [two/pair/of] compound eyes |
| big in size /big head | small in size /small head |
[iii] (iii) Behavioural adaptation common1o specimens D and E
Social insects/nuptial flight/swarming
(b) Economic importance of specimen E
a. Production of honey
b. Production of beeswax/wax
c. Pollinating agent d. Employment
e. Their stings lead to allergies/anaphylactic shock/difficulty in breathing/rashes/skin irritations
f. Their stings could lead to death.
{c} Table
| Types of teeth | one function of teeth |
| incisor | cutting of vegetation/nibbling/gnawing/biting. |
| premolar | grinding/chewing |
| molar | grinding/chewing |
d[i] mode of feeding specimens G herbivorous
ii ways by which specimen G adapts its organism to its mode of feeding
a. sharp/chisel shaped/curved incisors for cutting vegetation/leaves /food/gnawing/bibbling/bitting
b. broad/ridged surface of premolar ; for grinding /chewing
Presence of diastema/space between incisor
grinding/chewing and premolar, allows the rolling of food into bolus/its separates.freshly cut food/grass from the one being chewed.
e.Mineral element needed for the proper functioning of specimen G
i.Calcium ii. Phosphorus iii. Copper
iv.Boron v. Zinc vi. Copper
vii.Magnesium viii. Iron ix. Potassium