2022 WAEC Biology Practical Questions and Answers

WAEC Biology Practical Questions and Answers 2022,  objective and theory answers (Expo) for West African Examinations Council (May/June) 2022. 

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*Specimen H:* Head of domestic fowl (complete) and Specimen L: Head of Duck (complete)

The phylum of Specimen H and L is Chordata and the class of Specimen H and L is Aves

1. (i)   Name the habitats of each of specimens H and L.

Specimen H a common environments for  include savannas, woodlands, desert, plains, semidesert, dry grasslands and scrubs.

Specimen L are found in wetlands, marshes, ponds, rivers, lakes and oceans because they are mostly aquatic birds, and may be found in both fresh water and sea water.

👉 *Mode of Feeding of Specimen H and L*

They are omnivorous and will eat grass, aquatic plants, insects, seeds, fruit, fish, crustaceans and other types of food.

(ii)  Name the class to which of each of specimens H and L belong    *

They both belongs Aves

(iii)  Observable features that adapt specimen L to its habitat

Ducks possess an oily coating that keeps water from settling in their feathers, helping them in staying dry and keeping themselves warm.

Their webbed feet, designed like paddles, provide more surface area to push against the water and help them swim.

The comb-like structure, called pecten, present along the edge of their beak is adapted to hold slippery food and to preen feathers.

They have specialized flat beak suitable for searching insect larvae and pulling small mollusks, worms, and waterweed out of the mud.

(iv) Behavior Features of Specimen L to its Habitat.


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