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.
pellicle
cytoplasmic connections
flagella
cells
Correct answer is B
Similar cytoplasmic bridges link the cells of all volvocacean embryos.
I.e neighboring cells are often joined together by strands of cytoplasm.
An adaptive feature of camel to the desert is?
ability to increase sweat production
ability to pass high amount of urine
ability to tolerate low degree of dehydration
ability to tolerate high degree of dehydration
Correct answer is D
The hump present in the camel helps them travel long periods without water to survive in the desert's harsh conditions.
Thus the hump acts as a fat reserve or an energy reserve.
Felix Dujardin
Carolus Linneus
Theodore Schwann
Charles Darwin
Correct answer is B
Carolus Linnaeus is the father of taxonomy, which is the system of classifying and naming organisms.
One of his contributions was the development of a hierarchical system of classification of nature.
Today, this system includes eight taxa: domain, kingdom, phylum, class, order, family, genus, and species.
petaloid sepals serve the function of?
carrying out photosynthesis
attracting pollinating agents to a flower
retaining pollen grains in the corolla tubes
protecting the inner floral parts of the flower
Correct answer is D
They typically function as protection for the flower in bud, and often as support for the petals when in bloom.
The under secretion of thyroxine in children results in?
goitre
gigantism
kwashiorkor
cretinism
Correct answer is D
Congenital hypothyroidism, previously known as cretinism, is a severe deficiency of thyroid hormone in newborns.
It causes impaired neurological function, stunted growth, and physical deformities