2011
The process whereby electrons are emitted from chlorophyll and returned to it unchanged is known as
See more
2011 WAEC SSCE Biology Past Questions
2011
Specimen J (Dry refuse/waste): Paper, dry leaves, or cardboard.Specimen K (Wet refuse/waste or sewage): Kitchen waste like vegetable peels, food scraps, or sewage sludge.Carefully study specimens J and K and answer quest…
See more
2011
Specimen E: CockroachSpecimen F: Soldier TermiteStudy carefully specimen E and F and use them to answer questions 2(a) to 2(d).(a) (i) What class of organism do specimen E and F belong to?(ii) State three similarities be…
See more
2011
Specimen A: Stem of a CactusSpecimen B: Shoot (likely of an Onion, considering the bulb mode of propagation)Specimen C: Stem, specifically a Rhizome (likely of Ginger)Specimen D: Root, specifically a Root Tuber (likely o…
See more
2011
(a) Explain the following terms: (i) putrefaction (ii) nitrogen fixation (iii) nitrification (iv) denitrification(b) State three differences between nitrogen fixation and denitrification.(c) Explain how nitrogen from uri…
See more
2011
(a) (i) What is the difference between the genotype and phenotype of an individual? (ii) State two factors each which determine each of the terms in (a)(i).(b) In a breeding experiment, a homozygous dog (BB) was crossed…
See more
2011
(a)State the second law of thermodynamics. (ii) Use the second law of thermodynamics to explain the flow of energy across different trophic levels in a food chain.(b) (I) State three factors that can likely limit the siz…
See more
2011
(a) Make a diagram 8 — 10 cm long to show the relative position of the following organs in the mammalian gut: (i) stomach (ii) pancreas (iii) liver (iv) gall bladder (v) duodenum and label fully.(b) (i) List two dis…
See more
2011
(a) (i) What is the effect of gravity on plant growth? (ii) Describe an experiment to demonstrate the effect of gravity on the roots of plants.(b) Explain how bitter taste is detected in humans.(c) Copy and complete the…
See more
2011
During blood transfusion, agglutination may occur as a result of the reaction between
See more
2011
The part labelled II in the diagram is the
See more
2011
Which of the following structures is a tissue
See more
2011
The branch of Biology that deals with the principles of classification of organisms is known as
See more
2011
The following processes are involved in water movement in the endodermis except
See more
2011
In which of the following habitats is Paramecium no found
See more
2011
If Amoeba is placed in a salt solution. the contractile vacuoles would
See more
2011
Which of the following pairs of cells carry out the same function?
See more
2011
Which of the following cells are not regarded as specialized?
See more
2011
A monocot root IS different from a dicot root by having
See more
2011
Secondary growth is brought about by the activities of the
See more