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Biology
NECO SSCE 2009
Science of Living Things
Which of the following body characteristics distinguishes Ascaris from Earthworms?
A
Bilaterally symmetrical
B
Cylindrical
C
Segmented
D
Soft
E
Unsegmented
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #42581)
Biology
NECO SSCE 2009
Science of Living Things
Which of the following enables mammals to maintain balance?
A
Cochlea
B
Eustucian tube
C
Ossicle
D
Semi-circular canal
E
Tympanic membrane
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #42582)
Biology
NECO SSCE 2009
Science of Living Things
Cellular respiration occurs in the
A
chloroplast
B
endoplasmic reticulum
C
food vacuole
D
mitochondrion
E
nucleus
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #42584)
Biology
NECO SSCE 2009
Science of Living Things
Which of these vertebrae is of the same number in man and rabbit?
A
Caudal
B
Cervical
C
Lumber
D
Sacral
E
Thoracic
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #42586)
Biology
NECO SSCE 2009
Science of Living Things
These animals exhibit camouflage EXCEPT
A
chameleon
B
crab
C
crocodile
D
lizard
E
snake
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #42590)
Biology
NECO SSCE 2009
Science of Living Things
Which of the following is a characteristic of mollusc?
A
Bodies are protected by hard exoskeleton
B
Bodies are segmented
C
Body walls have three layers
D
Presence of paired jointed appendages
E
The head bears a pair of antennae
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #42595)
Biology
NECO SSCE 2009
Science of Living Things
These groups of bacteria are harmless EXCEPT
A
denitrifying
B
nitrifying
C
nitrogen-fixing
D
parasitic
E
saprophytic
medium Difficulty
Verified Correct Answer: Option D
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option D.
Source: Myschool Past Questions Archive (Record #42598)
Biology
NECO SSCE 2009
Science of Living Things
Which of the following enzymes act on carbohydrates?
A
Amylase
B
Lipase
C
Pepsin
D
Renin
E
Trypsin
medium Difficulty
Verified Correct Answer: Option A
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option A.
Source: Myschool Past Questions Archive (Record #42611)
Biology
NECO SSCE 2009
Science of Living Things
Plants use Nitrogen in the form of
A
ammonia
B
ammonium
C
nitrates
D
nitrites
E
urea
medium Difficulty
Verified Correct Answer: Option C
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #42614)
Biology
NECO SSCE 2009
Science of Living Things
Digested food is carried from small intestine to the liver by the
A
hepatic artery
B
hepatic portal vein
C
hepatic vein
D
inferior vena cava
E
superior vena cava
medium Difficulty
Verified Correct Answer: Option B
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option B.
Source: Myschool Past Questions Archive (Record #42619)
Biology
NECO SSCE 2009
Science of Living Things
The following processes release carbondioxide into the atmosphere EXCEPT
A
combustion
B
decomposition
C
putrefaction
D
respiration
E
transpiration
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Myschool Past Questions Archive (Record #42622)
Biology
NECO SSCE 2009
Science of Living Things
The following processes release carbondioxide into the atmosphere EXCEPT
A
combustion
B
decomposition
C
putrefaction
D
respiration
E
transpiration
medium Difficulty
Verified Correct Answer: Option E
Biological Concept & Syllabus Guide
No expanded working has been attached for this question yet. The verified answer is Option E.
Source: Official Exam / Past Question Archive
Mathematics
NECO SSCE 2008
Number and Numeration
Solution
Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y = 4, find the value of k.
A
56
B
34
C
32
D
-34
E
-56
medium Difficulty
Verified Correct Answer: Option B
Step-by-Step Mathematical Solution
x\(^2\) + y\(^2\) + k = 60
(\sqrt10)\(^2\) + (4)\(^2\) + k = 60
k + 10 + 16 = 60
k = 60 - 26
k = 34
Source: WAEC / JAMB / NECO Classroom Archive (Record #42529)
Mathematics
NECO SSCE 2008
Number and Numeration
Solution
Bello chooses a number randomly from 1 to 10. What is the probability that it is either odd or prime?
A
\(\frac{1}{10}\)
B
\(\frac{2}{5}\)
C
\(\frac{1}{2}\)
D
\(\frac{3}{5}\)
E
\(\frac{9}{10}\)
medium Difficulty
Verified Correct Answer: Option D
Step-by-Step Mathematical Solution
the numbers from 1,2,3,4,5,6,7,8,9,10. n( total numbers) = 10
the odd numbers are 1, 3, 5, 7, 9 n( odd) = 5
the prime numbers are 2, 3, 5, 7 n( prime) = 4
but total favourable outcome = ( 1,2,3,5,7,9) = 6
Pro( odd or prime no) = \(\frac{6}{10}\) = \(\frac{3}{5}\)
Source: WAEC / JAMB / NECO Classroom Archive (Record #42655)
Chemistry
NECO SSCE 2008
Shapes of Molecules and Solids
Solution
The high boiling point of hydrogen fluoride can be explained in terms of?
A
covalent bonds.
B
dative bonds.
C
dipole-dipole bonds
D
electrovalent (ionic) bonds.
E
hydrogen bonds.
medium Difficulty
Verified Correct Answer: Option E
Chemical Principles & Mechanism
Hydrogen fluoride is formed through covalent bonding (electron sharing) between a hydrogen atom and a fluorine atom.
The reason is the strong electronegativity of the fluorine atom, which causes hydrogen and fluorine atoms to form hydrogen bonds in the liquid phase.
Source: WAEC / JAMB / NECO Classroom Archive (Record #43548)