observe specimen C carefully and answer the following questions.
(a)(i) State tne class to which specimen C belongs.
(ii) Give three reasons for placing Specimen C in that class.
(iii)State two food items which specimen C feeds on.
(b) State two observation of each of specimen C which adapt it to: (i) its mode of feeding (ii) locomotion
(c) List three observable characters of specimen C which can be inherited.
(ii) If white feather colour (W) Is dominant in chickens over black feather colour (w),
with the aid of qenetic.diagrams show how it can be determined whether specimen C is homozygous dominant or heterozygous dominant.
Explanation
(a)(i) Class of specimen C/Cock:
(ii) Reasons for class: - Body covered with feathers. - Forelimbs modified into wings. - Mouth modified into beak.
(iii) Food items: Grains/any named grain; insects; worms; vegetables.
(b)(i) Features for feeding: short, strong/horny beak for pecking food. sharp/strong claws on toes/digit;
- for Scratching the suriace of ground in search for food.
(ii) Features of locomotion: - Streamlined shape to reduce air resistance.
- Forelimbs modified into wings for flying. - Hind limb for walking and running. -Tail feathers for steering and balancing.
(c)(i) Observable characters that can be inherited: Colour of feather, shape of comb, shape of beak, eye colour, size of comb, body size; colour of wattle.
