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.
25% wrinkled, 75% round
100% wrinkled
50% wrinkled, 50% round
75% wrinkled, 25% round
100% round
Correct answer is E
Owing to the dominance of roundness, the crossing of the two seeds regularly would see all the offsprings having mixed genes but will be round.
Which of these products obtained from analyzing sweat from skin is not an excretory product?
water
Salts
Dust
Urea
Urates
Correct answer is C
Dust is not an excretory product from the human.
Which of these is not a characteristics of a wind pollinated flowers?
A smaller quantities of sticky pollen produce
Feathery styles of stigmas pendulously hang outrside the flower
small inconspicuous scentless flower
large anthers which are loosley attached to the filament
Light pollen grains produced in large quantities from the anthers
Correct answer is A
Wind-pollinated grains are non-sticky and light, to ensure they can be blown by the wind.
Only the tip of the seedling received the light
The light was not strong enough
The seedlings were rather too young
The tip of the seedling may have been covered
The box containing the seedling should have been placed on a laboratory bench
Correct answer is A
Plants growing with an unshaded light source will grow straight up towards the sun because auxin is evenly distributed all around the shoot. Plants are able to “see” light using the tips of the plant shoots.
pulmonary artery
lungs
Heart
liver
aorta
Correct answer is D
Blood circulation holds in the circulatory system, the liver is a part of the digestive system. Hence, the liver can't be a part of the circulation process.