Which of the following organelles is common to both plant and animal cells
Απάντηση
(C)
Cell membrane
2
The sections in X and Y respectively, are
Απάντηση
(B)
transverse and longitudinal
3
The fruit that has the illustrated sections is a
Απάντηση
(A)
hesperidium
4
The structure labelled I is associated with
Απάντηση
(B)
asexual reproduction
5
The structure labeled II is the
Απάντηση
(D)
sporangium
6
Which of the following statements about the structure labeled III is correct?
Απάντηση
(A)
secretes digestive enzymes into the substrate
7
The level of organization of the organism is
Απάντηση
(B)
cell
8
The organism belongs to the Phylum
Απάντηση
(C)
Euglenophyta
9
A plant cell placed in a solution with a higher water potential will
Απάντηση
(B)
enlarge and become turgid.
10
Offspring formed by sexual reproduction exhibit more variation than those formed by asexual reproduction because
Απάντηση
(B)
gametes of parents have different genetic composition
11
Radius and ulna are bones of the?
Απάντηση
(D)
lower arm
12
The blood vessel which carries blood from the alimentary canal to the liver is the?
Απάντηση
(C)
hepatic portal vein
13
The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question.
Which of the labeled parts is the cortex?
Απάντηση
(D)
IV
14
The diagram above is an illustration of the longitudinal section of a mammalian organ. Study it and answer this question.
What is the main function of the organ?
Απάντηση
(A)
Excretion
15
Detoxification of urea takes place in the?
Απάντηση
(C)
liver
16
Which of the following hormones is suddenly secreted into the bloodstream of a frightened person?
Απάντηση
(B)
adrenaline
17
The temperature control centre in mammals is located in the?
Απάντηση
(B)
hypothalamus
18
The diagram above is an illustration of a type of eye defect in humans. Study it and answer this question.
The eye defect illustrated in the diagram is?
Απάντηση
(D)
myopia
19
The diagram above is an illustration of a type of eye defect in humans. Study it and answer this question.
The eye defect can be corrected by the use of?
Απάντηση
(B)
concave lens
20
How many gametes are produced in the pollen grain of a flowering plant before fertilization?
Απάντηση
(B)
two
21
Which of the following organisms does not undergo incomplete metamorphosis?
Απάντηση
(C)
butterfly
22
An enzyme reaction may begin to decline when?
Απάντηση
(B)
the ph of the medium is altered
23
The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.
What precaution should have been taken to prevent the solution from turning green?
Απάντηση
(C)
cover the culture vessel with opaque paper
24
The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.
The death of the plant was likely caused by?
Απάντηση
(C)
algal growth in the solution that used up the nutrients
25
Which of the following factors is not necessary for photosynthesis?
Απάντηση
(C)
wind
26
Autotrophic nutrition is a process whereby an organism obtains food
Απάντηση
(B)
by synthesizing simple substances using energy
27
The process that takes place at the light stage of photosynthesis is?
Απάντηση
(A)
splitting of water molecules to form hydrogen ions
28
The diagram above is an illustration of the foot of an animal.
The adaptation of this type of foot is that it is?
Απάντηση
(B)
used as a paddle for swimming
29
The following organisms are examples of carnivorous plants except.
Απάντηση
(A)
gloriosa
30
Plants and animals of an ecosystem make up a?
Απάντηση
(C)
community
31
Rabbits cannot survive in an aquatic habitat because they have
Απάντηση
(B)
no gills
32
The illustration below is a food chain.
Grass→grasshopper→domestic fowl→hawk
What would happen if the population of domestic fowl decreases?
Απάντηση
(C)
grasshoppers would increase
33
Which of the following features is a characteristic of aquatic plants possession of ?
Απάντηση
(D)
succulent stem
34
An association between living organisms in which one organism lives on and feeds at the expense of the other organism is known as?
Απάντηση
(C)
parasitism
35
When a large number of organisms share limited resources, the result is?
Απάντηση
(D)
competition
36
Which of the following behaviours is correctly matched with the corresponding diseases?
