Which of the following structures is common to Euglena, white blood cell and Amoeba?
پاسخ دهید
(D)
Cell membrane
3
The term 'Thyllophyta'refers to
پاسخ دهید
(B)
algae and fungi
4
The following organisms are hermaphrodites EXCEPT?
پاسخ دهید
(C)
Schistosoma
5
Parasitic form are NOT found among
پاسخ دهید
(C)
mollusces
6
Which of the following sets of organisms represents the correct trends from simple to complex structural organization? 1. Mollusca 2. Platyhelminthes 3. Nematoda 4. Protozoa
پاسخ دهید
(D)
4 → 2 → 3 → 1
7
Spirogyra, Euglena and Chlamydomonas share many characteristics EXCEPT
پاسخ دهید
(C)
mobility
8
The prothallus of fern is equivalent to the gametophyte generation of moss because it
پاسخ دهید
(C)
bears sexual organ
9
What is the function of Trichocyst in paramecium?
پاسخ دهید
(B)
Defence
10
The long and coiled intestine of a young tadpole ia an adaptation to its
پاسخ دهید
(A)
herbivorious diet
11
Lungs hooks are used for respiration in
پاسخ دهید
(A)
spiders
12
Insects and millipede have many features in common EXCEPT
پاسخ دهید
(C)
compound eyes
13
The major function of the swim-bladder in fishes is
پاسخ دهید
(B)
buoyancy
14
Which of the following statements gives the BEST description of bark?
پاسخ دهید
(B)
Cork-like tissue found only in stems
15
In the transverse section of the leaf of maize vascular bundles are arranged in
پاسخ دهید
(B)
one circle
16
If an animal has diastema, it would NOT posses
پاسخ دهید
(B)
cannines
17
If the gall bladder of a mammal is damaged, which of the following will be most seriously affected?
پاسخ دهید
(C)
Digestion of fats and oil
18
Which of the following will be first digested if ingested at the same time?
پاسخ دهید
(B)
Cooked rice
19
If the phloem of a healthy plant is killed by heat treatment the
پاسخ دهید
(B)
food manufactured in the leaves will accumulate
20
In the mammalian respiratory system, exchange of gases occurs in the
پاسخ دهید
(D)
alveoli
21
The main waste products formed in plants are
پاسخ دهید
(D)
water, carbondioxide and oxygen
22
In the kidney, the malpighian corpuscles is located in the
پاسخ دهید
(C)
cortex
23
The skin, through the sweat glands, function as
پاسخ دهید
(A)
an excretory organ
24
Parenchyma cells are serves as supporting tissue when they
پاسخ دهید
(D)
become turgid
25
Taxism differs from tropism because
پاسخ دهید
(A)
the whole organism is affected
26
A dry dehiscent fruit which breaks up into one-seeded part is a
پاسخ دهید
(A)
schizocarp
27
Airspace are characteristic of seeds of fruits dispersed by
پاسخ دهید
(B)
water
28
In vegetation propagation, which of the following requires part of another plant to develop?
پاسخ دهید
(A)
Scion
29
Which of these plants groups are normally propagated by asexual means?
پاسخ دهید
(A)
Banana, yam, pineapple and cassava
30
In a mammal, the placenta performs functions similar to those to the
پاسخ دهید
(A)
lungs kidneys and digestive system
31
The radicle of a bean seedling grows most rapidly in the region
پاسخ دهید
(D)
just below the root tip
32
The main function of the choroid is
پاسخ دهید
(C)
supply of nutrient to tissue of the eye
33
What part of the central nervous system is concerned with answering an examination question
پاسخ دهید
(A)
Cerebrum
34
If a dark-skinned woman (Bb) marries an albino man (bb) and they have four children, how many of the children will be dark-skinned?
پاسخ دهید
(B)
2
35
A red-coloured flower when crossed with a white-coloured one produced pink flowers. This is an example of?
پاسخ دهید
(B)
blending inheritance
36
The turbidity of a pond can be measured using the
پاسخ دهید
(B)
secchi disc
37
The most important substance necessary for the maintenance of life are carbon , oxygen
پاسخ دهید
(D)
nitrogen, salt and water
38
IF an organism obtains its food by means of haustoria, it is said to be
پاسخ دهید
(D)
parasitic
39
Which of the following relationship involves only one organism?
پاسخ دهید
(A)
Saprophytism
40
Which of the following has the greatest influence on the distribution of animals in marine and fresh water habitats?
پاسخ دهید
(B)
Salinity
41
Which of these groups of animals is likely to be found in fresh water?
پاسخ دهید
(B)
Blood worm, pond skater and dragonfly larva
42
One of the characteristics of plants in the savanna is the
پاسخ دهید
(D)
possession of thick, flaky bark
43
Which of the following diseases can be contracted in areas with fast flowing rivers?
پاسخ دهید
(D)
Onchoceriasis
44
Which of the following causes pollution?
پاسخ دهید
(D)
Burning of refuse
45
The mineral nutrient that is most bound to the soil is
