Question 1 of 20 2,572 total questions
Water in plants is removed as water vapour through the process of
A diffusion
B osmosis
C evaporation
D transpiration
The use of moist skin for respiration in amphibians is known as
A cellular respiration
B cutaneous respiration
C buccal respiration
D pulmonary respiration
The stomata of leaves are similar in function to the
A pharynx of humans
B scales of fish
C spiracle of insects
D trachea of toads
In vascular plants, the sieve tubes and companion cells are present in the
A cambium
B cortex
C xylem
D phloem
A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because
A Amoeba lives in freshwater
B Diffusion is sufficient to transport materials in Amoeba
C Amoeba lacks blood containing haemoglobin
D Amoeba exibits anaerobic respiration
i2/1, c0/0, pm3/2, m3/3. The general formula above represent that of
A an omnivore
B a detritus feeder
C a carnivore
D a herbivore
Which of the following is an aboreal organism?
A Elephant
B Fish
C Antelope
D Bird
Seed plants are the most dominant vegetation on land because of
A their motile gamates
B their ability to photosynthesize
C efficient seed dispersal
D availability of water
In bryophytes, sex organs are produced in the
A protonema
B sporophyte
C gametophyte
D rhizoid
Which of the following organisms is multicellular?
A Chlamydomonas
B Spirogyra
C Amoeba
D Euglena
Which of the following is the most complex according to their cellular level of organization?
A Heart
B Hair
C Euglena
D Hydra
The lowest level of organization in living organisms is
A organ
B cell
C system
D tissue
The organism is found in soils rich in
In the diagram, the structure labelled II is the
A spermathecal pore
B cocoon
C clitellum
D chaetea
The behavioural adaptation in social insects could best be described as
A symbiosis
B saprophytism
C parasitism
D commensalisms
The special pigment for colour change in chameleon is
A melanin
B carotenoid
C chromatin
D chromatophore
Which of the following structure is adapted for feeding in a bird of prey?
A Hooked break and sharp claws
B Smooth beak and strong claws
C Big beaks and strong feet
D Pointed beak and strong claws
One of adaptation of Cactus opuntia to conserve water is the reduction of
A internodes
B stem to leaves
C leaves to spine
D flower size
Physiological adaptation to very dry conditions in animals demonstrates
A rejuvenation
B xeromorphism
C hibernation
D aestivation
The clumping together of red blood cells is
A agglutination
B fussion
C transfusion
D compatibility
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