2015 - JAMB Biology Past Questions & Answers - page 1

1
A tissue is composed of a group of
A
similar cells
B
tissues
C
systems
D
related organs
CORRECT OPTION: a
2
The population of different organisms that exist together in a habitat is called
A
biomes
B
biosphere
C
community
D
ecology
CORRECT OPTION: c
Option A is wrong. This is because, a biome is a regional or global land area that is characterized by the plants, animals and climate in that area
Option B is wrong. This is because, biosphere is the part of the earth that supports life.
Option C is correct. This is because, community consists of different organisms living together in a habitat.
Option D is wrong. This is because ecology is the study of organisms and their environment.
3
Which of the following serves as the brain box in man
A
skeleton
B
skull
C
head
D
spinal column
CORRECT OPTION: b
4
Which organ removes the largest amount of excess water from the body?
A
Liver
B
Lung
C
Kidney
D
skin
CORRECT OPTION: c
Lungs: Remove carbon dioxide
Skin: Sweat glands remove water, salts, and other wastes
Large intestine: Removes solid waste and some water in the form of feces
Kidneys: Remove urea, salts, and excess water from the blood
5
The following parts are involved in breathing process, except
A
mouth
B
nostrils
C
ribs
D
diaphragm
CORRECT OPTION: a
The act of breathing has two stages – inhalation and exhalation

- Inhalation – the intake of air into the lungs through expansion of chest volume.

- Exhalation – the expulsion of air from the lungs through contraction of chest volume.

Inhalation and exhalation involves muscles:

- Rib muscles = the muscles between the ribs in the chest.
- Diaphragm muscle
6
Which of these is not a sampling method for determining population size?
A
capture and re-capture method
B
complete census
C
Transect method
D
systematic sampling
CORRECT OPTION: d
7
A group of organisms of the same kind inhabiting the same environment is called
A
ecosystem
B
habitat
C
population
D
species
CORRECT OPTION: d
8
The light sensitive cells in the human eye is called the ................
A
Choroid
B
Sclerotic layer
C
retina
D
cones
CORRECT OPTION: d
Cone cells, or cones, are one of two types of photo-receptor cells in the retina of the eye. They are responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light. Cone cells are densely packed in the fovea centralis, a 0.3 mm diameter rod-free area with very thin, densely packed cones which quickly reduce in number towards the periphery of the retina. There are about six to seven million cones in a human eye and are most concentrated towards the macula
9
The earliest form of life in animal kingdom is the
A
class
B
amphibian
C
aves pisces
D
reptilia
CORRECT OPTION: c
10
Which of the following disease is not sexually transmitted?
A
Gonorrhea
B
Herpes
C
Influenza
D
Syphilis
CORRECT OPTION: c
Pages: