2015 - JAMB Biology Past Questions and Answers - page 6
51
The process by which organisms keep their internal condition relatively stable is called
A
metabolism
B
evolution
C
gametogenesis
D
homeostasis
correct option: d
Option D is correct. This is because Homeostasis is any self-regulating process by which biological systems tend to maintain stability while adjusting to conditions that are optimal for survival.
Users' Answers & Comments52
The following exist as free-living organisms except
A
Amoeba
B
Chlamydomonas
C
Euglena
D
Spirogyra
correct option: d
Option D is the correct answer. This is because, Spirogyra exist as filament that occurs in rows or chains.
Users' Answers & Comments53
The basic functional unit of the kidney is the
A
nephron
B
bowman’s capsule
C
glomerulus
D
loop of henle
correct option: a
Option A is correct. This is because, the part that makes kidney perform its osmoregulation function in man is the nephron i.e. the production or formation of urine is done through nephron in the kidney.
Users' Answers & Comments54
Snails belong to the phylum
A
Annelida
B
Mollusca
C
Echinodermata
D
nematode
correct option: b
Users' Answers & Comments55
Which of the following is not a pest of crops?
A
Bird
B
Rodent
C
Bed bug
D
Grasshopper
correct option: c
Option C is correct. This is because, bed bug is not an animal pest that can affect crop plants in a farmland. It can only affect animals like homo sapiens etc.
Users' Answers & Comments56
Another name for a fertilized egg is a
A
placenta
B
zygote
C
foetus
D
ovum
correct option: b
Option B is correct. This is because, when the male sperm and female egg come in contact with each other, it becomes a fertilized egg or cell. When this happen, it results to forms the zygote.
Users' Answers & Comments57
Plants that survive in marine habitats are called
A
halophytes
B
hydrophytes
C
mesophytes
D
xerophytes
correct option: a
Option A is correct. This is because halophytes are plants that live successfully in a marine(salt water) habitat.
Users' Answers & Comments58
The study of plants is called
A
Zoology
B
Entomology
C
Parasitology
D
Botany
correct option: d
Users' Answers & Comments59
The following are examples of air borne diseases, except
A
Chicken pox
B
Cholera
C
common cold
D
Whooping cough
correct option: b
Option B is the correct answer. This is because, cholera is a water borne disease (disease caused by contaminated water).
Users' Answers & Comments60
Which of the following is the end product of the digestion of oil
A
glucose
B
Glycerol
C
amino acid
D
glycogen
correct option: b
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