How well do you understand living things and their vital processes? Whether you are preparing for JAMB, WAEC, NECO and Post-UTME, these Biology past questions and answers cover such subjects as the chemistry of life, botany, evolution, genetics, ecology etc to help you know what to expect, improve your speed and confidence and be really prepared for the actual aptitude test.
Which of the following essential substance is contained in vegetable?
Chlorophyll
Glucose
Mineral Salts
Carbon dioxide
Correct answer is C
Vegetable contains mineral salts like magnesium, copper, etc., which is very essential for body growth.
Which of the following juices contains the enzyme ptyalin?
Gastric juice
Succus
Pancreatic juice
Saliva
Correct answer is D
The saliva contains an enzyme called ptyalin which partially helps hydrolyse starch to maltose.
Possession of thin membrane enables a tapeworm to
Fasten themselves to the wall of the host's intestine
Lay numerous eggs
Absorb digested food from the host's intestine to their system
Shield themselves inside the host's intestine with anti-enzymes in order to avoid being digested
Correct answer is C
The tapeworm possesses a thin membrane mostly because of it absorption of digested food from the intestine of the host.
Which of the following type of soil has the highest water retaining capacity?
Loam
Laterite
Clay
Sand
Correct answer is C
Clay soil has a better retaining capacity because of its dense, closely packed particles. This quality makes it hold in more water than any other soil type.
The presence of ______ for swimming in a tad-pole enables it to adapt in an aquatic habitat.
Gills
Swim bladder
Tail
Fins
Correct answer is C
Tadpole's ability to swim and adapt to an aquatic habitat is due to the presence of its tail.