Question 1 of 20 2,572 total questions
Exponential increase in the population of an organism is a characteristic feature off
A binary fission
B sexual reproduction
C budding
D vegetative propagation
A corn differs from a bulb in that
A its stem is the main food storage organ
B it has a flattened discshaped stem
C buds are absent in the axils of the leaves
D adventitious roots are present
The components of castor oil seed and the maize grain are similar EXCEPT for the
A number of cotyledons
B location of the embryo
C number of radicles
D number of plumules
Wind pollinated flowers usually have
A rough pollen grains
B sticky stigmas
C small and short stigmas
D long styles
The lumbar vertebra when compared with a thoracic vertebra has a
A longer neural spines
B wider neural canal
C thicker centrum
D shorter transverse process
Which of the following is the function of lymph?
A Carries hormones round the body
B Transports nutrients and oxygen from blood capil
C Distributes heat uniformly round the body
D conveys amino acids and glucose fromthe small intestine to the liver
There will be agglutination when the
A Group A serum mixes with Group A erythrocytes
B Group A serum mixes with group B erythrocytes
C Group AB serum mixes with Group O erythrocytes
D Group B serum mixes with Group B erythrocytes
The seedlings in rice field were found to have thin lanky growth with reddish leaves and poor root development. This is because the soil lacks
A sulphur
B phosphorus
C potassium
D iron
Aged erythrocytes are dissolved in the
A pancreas
B liver
C lymph nodes
D kidney
The pancreatic juice contains the enzymes amylopsin,
A pepsin and trpsinogen
B rennin and steapsin
C steapsin and trypsinogen
D steapsin and ptyalin
If a healthy potted plant is continuously kept in dim light
A the rate of respiration may equal that of photosynthesis
B more carbondioxide and water are taken in
C respiration may be halted
D the volume of oxygen released increase
In dicotyledonous stem, each companion cell is founded beside the
A endodermal cell
B xylem vessel
C sieve tube
D pericyclic fibre
The body of a snail is divided into head
A thorax and abdomen
B visceral mass and abdomen
C thorax and foot
D visceral mass and foot
The pedipalps in spiders are used for
A grasping
B walking
C feeling
D web spinning
Which of the following is a common characteristic of crustaceans?
A Possession of a pair of antennae
B Possession of two pairs of antennae
C Each segmented has a pair of walking legs
D Four pairs walking on the cephalothorax
Mineral salts can be absorbed into the roots by
A osmosis only
B osmosis and diffusion
C diffusion and active transport
D imbibition only
Which of the following phyla have members with both internal and external segmentation?
A Platyhelminthes
B Nematoda
C Annelida
D Mollusca
Double fertilization is a unique feature of
A angiosperms
B bryophytes
C pteridophytes
D algae
A multinucleate body without internal cell boundaries is characteristics
A bryop
B fungi
C algae
D gymnosperms
A characteristic of the phylum coelenterata is that
A most of them are marine
B they possess a gut with a single opening
C thy possess numerous pores on their body
D they are bilaterally symmetrical
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