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 is NOT an excretory product of animals?
carbondioxide
urea
sweat
oxygen
Correct answer is D
Animals take in oxygen in respiratory process, taking out carbondioxide.
Which of the following structures would carry out cellular respiration? A
germinating seed
decolorised leaf
dry leaf
boiled cowpea
Correct answer is A
Germinating seeds respire by using oxygen and producing carbon dioxide gas, they respire in the similar way as animals.
the importance of microelements to plants
ascent of water through the xylem
diffusion of colored substances
distribution of food in plants
Correct answer is C
No explanation has been provided for this answer.
The odontoid process is found on the
axis vetebra
atlas vetebra
thoracic vetebra
sacral vetebra
Correct answer is A
The odontoid process is a projection of the axis vetebra. It is seen at its point of joining with the body.
The conclusion drawn from the experiment in the diagram above is that
shoots of plants are negatively thigmotropic
shoots of plants are negatively geotropic
shoots of plants are positively phototropic
roots of plants are positively hydrotropic
Correct answer is D
The roots of the plants in diagram 1 bend towards the porous clay pot while growing and the well watered soil sees the plants growing straight and erect. The roots of the plants are positively hydrotropic (respond towards the pull of water positively).