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.
The most appropriate title for the set up is
quantitative measurement of respiration in plants and animals
measurement of respiratory rates in living organisms
comparison between photosynthesis and respiration
comparison of respiratory rates in plants and animals
Correct answer is D
No explanation has been provided for this answer.
starch is usually stored in the part labelled
I
II
III
IV
Correct answer is D
No explanation has been provided for this answer.
Which of the labelled parts allows for efficient absorption of water and minerals?
I
II
III
IV
Correct answer is A
the part labelled I is called the ROOT HAIR... it is responsible for the absorption of minerals and water from the soil into the plant
In the illustration above, the genotypes of the offsprings are
1 heterozygous smooth : 2 homozygous smooth : 1 wrinkled
1 homozygous smooth : 2 heterozygous smooth : 1 wrinkled
2 homozygous smooth : 2 wrinkled
3 heterozygous smooth : 2 wrinkled
Correct answer is B
The diagram above refers to a PUNNETT SQUARE used in predicting the probable genotypic and phenotypic ratios of a cross. looking at the diagram, we have the ratio
SS : Ss : sS : ss and from the question, we see the genotypic composition is;
1 homozygous smooth : 2 heterozygous smooth : 1 wrinkled
This lower jaw is typical of a
sheep
rabbit
dog
cat
Correct answer is A
No explanation has been provided for this answer.