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 diagram below illustrates an ecological instrument. Study it and answer the question below.
A disadvantage of the abiotic factor measured by the instrument is that it
is an agent of pollination
is necessary for germination
leads to flooding when in excess
is used for irrigation
Correct answer is C
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:
| Organism | Number in the habitat | |
| habitat W | habitat Y | |
| Plankton | 126 | 0 |
| Antelope | 0 | 51 |
| Water flea | 10 | 0 |
| Tilapia | 23 | 0 |
| Lion | 0 | 6 |
| Frog | 6 | 0 |
| Grass | 0 | 250 |
The number of lions and antelopes in habitat Y shows that the lion
is the prey while the antelope is the predator
is the predator while the antelope is the prey
and the antelope are preys to each other
and the antelopes are predators
Correct answer is B
No explanation has been provided for this answer.
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:
| Organism | Number in the habitat | |
| habitat W | habitat Y | |
| Plankton | 126 | 0 |
| Antelope | 0 | 51 |
| Water flea | 10 | 0 |
| Tilapia | 23 | 0 |
| Lion | 0 | 6 |
| Frog | 6 | 0 |
| Grass | 0 | 250 |
Which of the following statements about habitat W is correct? The
absence of lions and antelopes shows that the habitat is terrestrial
presence of Tilapia and planktons shows that the habitat is not aquatic
type of organisms present indicate that habitat is aquatic
absence of grasses indicates that the habitat is terrestrial
Correct answer is C
The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below:
| Organism | Number in the habitat | |
| habitat W | habitat Y | |
| Plankton | 126 | 0 |
| Antelope | 0 | 51 |
| Water flea | 10 | 0 |
| Tilapia | 23 | 0 |
| Lion | 0 | 6 |
| Frog | 6 | 0 |
| Grass | 0 | 250 |
Rainforest
Pond
Desert
Ocean
Correct answer is B
No explanation has been provided for this answer.
The mutualism type of relationship is different from a parasitic relationship because in mutualism
both organisms involved benefit
none of the organisms benefit or harm each other
both organisms harm each other
only one of the organisms is harmed
Correct answer is A
No explanation has been provided for this answer.