WAEC GCE Biology 2023 Questions And Answers
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The West African Examination Council (WAEC) Has Scheduled The Waec GCE Biology 2023 Paper To Kick Of On The 10th February, 2023.
This brings the attention of candidates writing the exam in to searching for WAEC GCE Biology 2023 Questions And Answers, WAEC GCE Biology Questions 2023, WAEC GCE Biology Answers 2023
Biology WAEC GCE Questions and Answers, GCE Biology Questions 2023, WAEC GCE Biology Practical 2023, WAEC GCE Biology Essay 2023, WAEC GCE Biology Objective 2023, WAEC GCE Biology Questions and answers 2023 and etc.
WAEC GCE Biology 2023 Questions And Answers
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Waec GCE Biology Expo 2023
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Past WAEC GCE Biology Practical Answers
Bean and pea
I – Radicle absorbes water from soil
II – Endosperm support , protect and control embryo growth
III – Controls gemination through dormancy composition
IV – helps supply the nutrition needed to germinate
VI – it aids dispersal of seeds
This add a few drops of iodine solution to the food solutions , the solution turns to dark blue – black
This adds bluret reagents to the food , it turns purple from blue
(a) Starch is degraded by the combined actions of sevral hydrolytic enzymes to provide energy for the embryo
(b) Stored protein are degraded by proteases
(ii) proper temperature
A – Tilapia fish
B – Tadpole
(iii) Dorsal fin
(iv) Lateral lines
(v) Caudal fin
(vii) Anal fin
(viii) Pelvic fin
(ix) Pectoral fin
(a) Body is covered with scales
(b) Presence of paired fins
(c) Presence of lateral lines
(d) Presence of operculum/gill cover.
[Pick any two]
(i) It has fins that help it swim in water.
(ii) It has gills that help it breath in water.
(iii) It has specialized eyes for viewing objects in water.
(i) The ear pit; enables the tadpole to detect the approach of enemies/food/direction of water current
(ii) Streamlined body; for easy movement in wate
(i) Both posses tail
(ii) Both posses head
(i) Body is streamlined
(ii) Presence of fins on the tail
(iii) Presence of lateral lines on the body
(iv) presence of scal
(i) Body is not streamlined
(ii) Absence of fins on the tail
(iii) Absence of lateral lines on the body
(iv) Absence of scale
Past WAEC GCE Biology Essay and Objective Answers
(i) Ingestion; taking in pieces of solid food into the mouth
(ii) Digestion: breaking down of large food particles by mechanical/chewing; enzymatic activites/chemical means into smaller particles/soluble that the body can absorb.
(iii) Absorption: taking up the soluble products of digestion into the blood;
(iv) Assimilation: using/utilization of the absorbed food materials by the body cells/tissues
(iv) Egestion: elimination of the undigested food materials through the anus.
(i) Secretion: Production and release of substances; useful to the body; by specialized glands of living organism.
(ii) Elimination: Removal of undigested food; from the body of living organisms.
(iii) Excretion: Removal of waste products of metabolism; from the cells/tissues of an organism; may be toxic if retained in the body.
Draw the diagram
(a)Organic evolution is a sum total of adaptive changes from pre-existing or old forms which have taken place over a long time and which result in diversity of form, structure, and functions among organisms.
(i) Charles Darwin
(ii) Carolus Linnaeus
(iii) Jean-Baptiste Lamarck
(i)They live in colonies or communities.
(ii)They undergo division of labour.
(a) Euphotic Zone (Sunlight Zone)
(b) Dysphotic Zone (Twilight Zone)
(c) Aphotic Zone
Population is defined as the number of a particular species of organisms in a given habitat.
(ii) Sweep net
(iv) and pickling.
Tropism is the response or orientation of a plant or certain lower animals to a stimulus that acts with greater intensity from one direction than another.
(i) Nastic response
(ii) Tactic response
fingerprint is a laboratory technique used to establish a link between biological evidence and a suspect in a criminal investigation.
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