Question 1 of 20 351 total questions
The gland that secretes the hormone glucagon is ... gland
A adrenal
B endocrine
C pancreas
D pituitary
E thyroid
Blood carrying digested food from the small intestine flows into the liver via the
A hepatic portal vein
B hepatic vein
C hepatic artery
D mesenteric artery
E renal vein
Which of the following is NOT an evidence of organic evolution?
A Comparative anatomy
B Embryology
C Fossil records
D Homologous features
E Spontaneous generation.
The practice of growing more than one type of crop on the same plot of land is called
A continuous cropping
B crop rotation
C mixed cropping
D mixed farming
E subsistence farming
Which of the following processes removes carbon (IV) oxide from the atmosphere?
A Combustion
B Excretion
C Photosynthesis
D Respiration
E Transpiration
Which of these nitrogenous bases is NOT a part of RNA?
A Adenine
B Cytosine
C Guanine
D Thymine
E Uracil
Poor growth and yellowing of leaves in plants is due to deficiency of
A boron
B calcium
C copper
D iron
E phosphorus
Which of these is NOT a structural adaptation of desert plants for water conservation?
A Broad leaves with many stomata
B Leaves reduced into spines
C Scale leaves
D Stems and leaves with thick cuticle
E Sunken stomata
The following are ways of caring for the mammalian skin EXCEPT
A eating balanced diet
B exposing the skin to adequate sunlight
C using skin toning creams
D using moisturising creams to prevent drying
E washing the skin with clean water and soap
Which of the following is NOT a function of placenta in mammals?
A absorption of food
B gaseous exchange
C removal of wastes
D secretion of hormones
E secretion of enzymes.
Which of the following does NOT occur during photosynthesis?
A Carbon dioxide is evolved
B Energy from the sun is utilized
C Glucose is synthesized
D Oxygen is given off
E Split of water
Tsetse-fly is a vector of a disease known as
A cholera
B dysentery
C elephantiasis
D malaria
E trypanosomiasis
All these statements are correct about a vein EXCEPT that it
A carries blood to the heart
B contains blood at low pressure
C has no valve
D possesses fairly thick walls
E usually carries deoxygenated blood
The speed of wind can be measured with an instrument called
A anemometer
B barometer
C hygrometer
D photometer
E thermometer
ln the process of succession, a climax community is established when
A a stable community is achieved
B the colonizers accommodate the new corners
C the colonizers are wiped out
D the first inhabitants settle down
E the new corners dominate the original inhabitants
Which of the following is a nitrifying bacterium?
A Azotobacter
B Clostridium
C Nitrobacter
D Rhizobium
E Staphylococcus
Which of these is a direct photosynthetic product?
A fats
B glucose
C latex
D protein
E starch
Deficiency of calcium in a child’s diet causes
A cretinism
B goiter
C kwashiorkor
D rickets
E scurvy
A waterlogged habitat with low light penetration and very low quantity of dissolved oxygen best describes a/an habitat
A estuarine
B marine
C sahel savanna
D swampy
E tropical rainforest
Birds excrete nitrogenous wastes in form of
A ammonia
B sweat
C urea
D uric acid
E urine
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