2024 WAEC BIOLOGY: (2548)

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Biology Objective 

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We Assure You A1 in Biology


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Pls note;They are to answer 3 questions in all. Two from section A and the one question in section B.

Section A contains nos 1-4

Section B has only number 6 (for Naija) And no 5 for GH number 4b corrected

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(1a)

(i) Plasma

(ii) Red blood cell

(iii) White blood cell

(iv) Platelets


(1b)

(i) Plasma

(ii) White blood cells

(iii) Red blood cells

(iv) Platelets

(v) Red blood cells

(vi) Platelets

(vii) White blood cells


(1c)

(i) Amino acids

(ii) Glucose

(iii) Mineral salts and water


(1d)

(i) Anemia

(ii) Haemophilia

(iii) Blood clots

(iv) Leukemia


(1e)

Disease of the blood is dangerous because it can lead to other issues and consequently death.

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Little Correction made in No 4


(4a)


TABULATE PLS


=ANIMAL=


(i) Peacock


(ii) Horse


(iii) Python


(iv) Lion


(v) Elephant


=ONE BODY PARTS THAT MAKES ANIMAL ENDANGERED BY HUMAN ACTIVITIES=


(i) Feathers


(ii) Tail


(iii) Skin


(iv) Skin


(v) Tusk


(4bi)


(i)Poor development of natural resources


(ii)Depletion of natural resources


(iii)Mismanagement of natural resources


(4bii)


(i)It leads to extinction ·


(ii)The animals suffer ·


(iii)It leads to more human deaths ·


(4c)


(i)The establishment of forestry departments and establishment of environment Protection agency to improve the situation.


(ii)the role of creation of Parks and Games Reserves/any correctly named example.


(iii)the role of conservation education carried out through tree planting/ campaigns against bush burning/ tree.


(iv)the role of preserve/maintain plants and animals in their natural environment

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(2a)

Dentition refers to the development of the teeth and their arrangement in the mouth of animals


(2b)

The tooth consist of three main portions namely , The crown , neck and root. The crown is above the gum covered with a white hard substances called enamel, The short neck is covered with gum. The root is embedded in the jaw bone by a substances called cementum


(2c)

(i) Protein

(ii) Fats

(iii) Cellulose


(2d)

 2024 WAEC BIOLOGY:  (2548) Welcome to official 2024 Biology WAEC answer page. We provide 2024 Biology WAEC Questions and Answers on Essay, Theory, OBJ midnight before the exam, this is verified & correct WAEC Bio Expo


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(6a)

TABULATE PLS


=PROCESS=

(i) Combustion

(ii) Precipitation

(iii) Lighting


=NUTRIENT CYCLE=

(i) Carbon cycle

(ii) Water cycle

(iii) Nitrogen cycle


=OTHER PROCESSES=

(i) Photosynthesis, decomposition, respiration

(ii) Condensation, transpiration evaporation

(iii) Nitrification, ammonification, denitrification


(6bi)

Irritability can be defined A the response to external stimulus. It is one of the characteristics of living organisms which they used in relating to these environment 


(6bii)

TABULATE PLS


=ACTION=

(i) Euglena moving towards light 

(ii) Opening and closing of minosa plant leaves 

(iii) Mosquito avoiding repellants

(iv) Earthworm moving away from light 

(v) Sperm cell moving towards chemical substances of an ovum 

(vi) Four o'clock plant opening at 4:00pm 

(vii) Shoot of bean seedlings growing towards sunlight 


=TYPES OF RESPONSE=

(i) Phototaxis 

(ii) Thigmotropism

(iii) Negative chemotaxis

(iv) Phototaxis

(v) Positive chemotaxis

(vi) Thermotaxis 

(vii) Positive Phototropic


(6ci)

TERRITORIALITY;

(i) Birds

(ii) Bees

(iii) Cougar


(6cii)

SEASONAL MIGRATION;

(i) Dragon flies

(ii) Butterflies

(iii) Northern elephant


(6ciii)

DISPLAY;

(i) Lizard

(ii) Poultry birds

(iii) Humans

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(3a)


-DECOMPOSER-


(i) Bacteria


(ii) Mushroom


(iii) Mucor




-PRODUCER-


(i) Water lettuce


(ii) Water leaf


(iii) Algae Lema




-CONSUMER-


(i) Dog


(ii) Tadpole


(iii) Cat




(3bi)


(i) Co2


(ii) Water


(iii) Energy


(iv) Plant nutrients




(3bii)


(i) Decomposers prevent accumulation of dead organisms


(ii) Increase soil fertility


(iii) Helps to break down biodegradable items




(3c)


(i) Non biodegradable items


(ii) Metals


(iii) Bones


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