Which of these animals is NOT metamerically segmented?
Trả lời
(E)
Shark
4
Some of the major elements required by plants are
Trả lời
(A)
Potassium, nitrogen, phosphorus, sodium, calcium
5
In human reproduction, the zygote formed as a result of fertilization gets attached to the wall of the uterus. The process is called
Trả lời
(D)
Implantation
6
Kwashiorkor is caused by severe deficiency of
Trả lời
(D)
Proteins
7
An hormoiothermic animal kept in a room where the temperature is lower than the body temperature may lose heat by four physical process. Which of the following processes is NOT connected with the body temperature regulation ?
Trả lời
(E)
Convection
8
Which of these food chains is NOT possible in a forest?
Trả lời
(A)
Diatom → fly → toad → snake
9
If a tall man (TT) marries a dwarf woman (gg) and they have four male children, the offspring will be?
Trả lời
(E)
All tall
10
A married couple has 10 children and they are all girls. Which of the following is the CORRECT explanation?
Trả lời
(E)
The X component of the man’s sex chromosomes was always involved
11
If a 26 year old blind man married a young one-eyed woman and they had four children, how many of them would be blind like their father?
Trả lời
(E)
none
12
The glottis is the opening which leads to the
Trả lời
(B)
Larynx
13
A tapeworm has no alimentary canal because
Trả lời
(D)
Its body absorbs digested food
14
A grass hopper respires by the means of its
Trả lời
(E)
Tracheal tubes
15
An onion bulb stores its food in the
Trả lời
(B)
Leaves
16
Roots of plants are normally
Trả lời
(D)
Positively hydrotropic
17
The main function of the swim-bladder is for
Trả lời
(C)
Buoyancy
18
Which of the following pairs are the products of sucrose hydrolysis?
Trả lời
(C)
Glucose + fructose
19
Which of the vertebra has a projection called odontoid process?
Trả lời
(B)
Axis
20
Refrigeration, as a method of preservation, has ONE of the following characteristics:
Trả lời
(C)
Makes the bacteria inactive
21
Treatment of a poor soil with lime supplies
Trả lời
(B)
Calcium
22
In the enzyme (amlyase) reactions of starch → sugar
starch is referred to as the
Trả lời
(A)
substrate
23
ONE of the major causes of haemophilia is lack of
Trả lời
(A)
firbrinogen
24
In man, identical twins occur when
Trả lời
(A)
An ovum is fertilized by a sperm and then divide into two, each forming a separate embryo
25
The parts of the mammalian eye that strongly bend light rays are the
Trả lời
(A)
cornea and the lens
26
Which of these statements is NOT true of insects?
Trả lời
(C)
Their thorax comprises three segments, only two of which bear a pair of appendages each
27
when an operculate fish breathes it takes in water through the
Trả lời
(B)
mouth and passes it out through the operculum
28
Which of the following tissue are made up of dead cells?
Trả lời
(B)
Xylem vessels
29
External ears of mammals consist of
Trả lời
(D)
auditory meatus and pinna
30
Any dry fruit which can break into several parts each containing one seed is a
Trả lời
(D)
schizocarp
31
Which of the following is NOT a function of mammalian blood?
Trả lời
(B)
Production of hormones
32
The maize grain is regarded as a fruit and not a seed because
Trả lời
(D)
there is the remain of a style
33
Which of these parts of the mammalian ears is directly concerned with the sense of balance?
Trả lời
(E)
Semicircular canals
34
When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to
Trả lời
(E)
anaerobic respiration of an organism
35
If a farmer left his land uncultivated for five years before returning to it, he must be practising
Trả lời
(E)
the bush fallow system
36
A pyramid of numbers can be defined as
Trả lời
(C)
the numerical relationships of a food chain
37
In man, spermatozoa are never found in the?
Trả lời
(D)
prostrate glands
38
Which of the following statements is TRUE of inhalation of air by man?
Trả lời
(E)
Size of thoracic cavity increase
39
If the gall bladder of a man is removed by surgery, which of the following processes will be most seriously affected?
Trả lời
(A)
Digestion of fats and oil
40
Flatworms and roundworms are said to be invertebrates because
Trả lời
(D)
they have no backbones
41
Where is the energy produced in a cell?
Trả lời
(E)
Mitochondria
42
In which part of a leguminous plant can you find bacteria like Azotobacter?
Trả lời
(D)
In nodules
43
The three blood vessels that supply the mammalian alimentary canals are
Trả lời
(B)
coeliac artery, anterior mesenteric artery and posteroir mesenteric artery
44
In an epigeal germination, it is the
Trả lời
(B)
hypocotyl that elongates fast
45
The mammalian pancreas is involved with the?
Trả lời
(D)
digestion of food, production of hormone and the regulation of blood sugar
