The organs that will be most useful to giant African rats in finding their way in underground habitats are the
Trả lời
(A)
vibrissae
2
The increasing order of the particle size in following soil type is
Trả lời
(C)
clay → silt → sand → gravel
3
The causative agent of bird flu is a
Trả lời
(B)
virus
4
Which of the following is an example of parasitism?
Trả lời
(C)
mistletoe growing on an orange tree
5
One adaptation shown by hydrophytes in freshwater habitats is the
Trả lời
(B)
poor development of roots and xylem tissues
6
A crucible of 5g weighed 10g after filling with fresh soil. it is then heated in an oven at 100°C for 1 hour. After cooling in a desiccator, the weight was 8g.The percentage of water in the soil is
Trả lời
(D)
40%
7
The highest level of ecological organization is the
Trả lời
(C)
biosphere
8
The mangrove swamp in Nigeria is restricted to the
Trả lời
(D)
tropical rain forest
9
A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is
Trả lời
(B)
competition
10
In which of the following Nigeria states can mountain vegetation be found?
Trả lời
(A)
Taraba
11
Which of the following factors can bring about competition in population?
Trả lời
(C)
drought
12
The theory which supports the view that the large muscles developed by an athlete will be passed on to the offspring was proposed by
Trả lời
(A)
Lamarck
13
In lizards, the lowering of the gular fold is used to?
Trả lời
(B)
attract mates
14
Example of a fish that aestivates is
Trả lời
(C)
lung fish
15
In mammals, the organ directly on top of the kidney is the
Trả lời
(B)
adrenal grand
16
The photosynthetic pigments include
Trả lời
(A)
chlorophyll and carotenoids
17
Monocot stem differ from dicot stems in that monocot have
Trả lời
(A)
no cambium
18
The opening and closing of the stoma are regulated by
Trả lời
(D)
osmosis
19
Stunted growth and poor root development are a result of a deficiency in
Trả lời
(B)
phosphorus
20
The pancreas secretes enzymes for the digestion of
Trả lời
(A)
fats, proteins and carbohydrates
21
Pineapple is an example of
Trả lời
(C)
a composite fruit
22
The correct sequence of the movement of urea during urine formation is
The waste product of plants used in the conversion of hide to leather is
Trả lời
(C)
tannin
24
Which of the following uses diffusion as the principal method of gaseous exchange?
Trả lời
(D)
earthworm
25
Which of the following has the most primitive respiratory system?
Trả lời
(A)
snail
26
A water medium is necessary for fertilization in
Trả lời
(C)
ferns
27
The chromosomes of members of the kingdom Monera are within the
Trả lời
(B)
cytoplasm
28
The process of shedding the exoskeleton of an arthropod is known as
Trả lời
(C)
ecdysis
29
Which of the following is common to the mosquito, housefly and blackfly?
Trả lời
(A)
they undergo complete metamorphosis
30
An accurate identification of a rapist can be carried out by conducting a
Trả lời
(B)
DNA analysis
31
which of the following is true of cloning?
Trả lời
(D)
it involves the asexual multiplication of the tissues of the original organism
32
An example of a sex linked trait is the
Trả lời
(D)
possession of facial hair in adult humans
33
Use the diagram above to answer this question. The type of protective adaptation exhibited by the animal is
Trả lời
(C)
countershading colouration
34
Use the diagram above to answer this question. The structure labelled l is
Trả lời
(D)
tactile
35
Use the diagram above to answer this question.Insulin is produced by the endocrine organ labelled
Trả lời
(B)
III
36
Use the diagram above to answer this question. The function of the structure labelled l is to
Trả lời
(D)
regulate the activities of other endocrine glands
37
Use the diagram above to answer this question.Oxygenated blood is pumped to the entire body from the part labelled
Trả lời
(A)
IV
38
Use the diagram above to answer this question. The part labelled l is the
Trả lời
(C)
aorta
39
Use the diagram above to answer this question.The part labelled lV is responsible for
Trả lời
(A)
osmoregulation
40
Use the diagram above to answer this question. The organelle responsible for sexual reproduction is
Trả lời
(D)
lll
41
Use the diagram above to answer this question.
The process illustrated is
Trả lời
(D)
sexual reproduction in Rhizopus
42
Use the diagram above to answer this question.
The structure labelled l is the
Trả lời
(C)
zygospore
43
Use the diagram above to answer this question.
If the dogs are offspring of a monohybird cross and the gene G for grey head is dominant cross over its allele g, the individual whose genotype is likely to be gg is
Trả lời
(C)
IV
44
Use the diagram above to answer this question.
Which of the following will be true of dog ll which lost its tail in an accident if it mates with dog lll.
