Biology 2019 Jamb Examination
Biology 2019 Jamb Examination
Question 71
Which of the following factors is not considered in a terrestrial habitat?
Turbidity refers to the cloudiness or muddiness of water, which is a factor relevant to aquatic rather than terrestrial habitats. Terrestrial habitats consider temperature, sunlight, and humidity as critical factors.
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Question 72
What type of vertebrate assists in breathing alongside with the ribs?
The thoracic vertebrae are located in the mid-back region and articulate with the ribs, forming the thoracic cage. This structure supports and aids breathing by allowing rib movement for lung expansion and contraction.
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Question 73
Which of the following statement is correct about Southern Guinea Savanna in Nigeria?
Southern Guinea Savanna is the largest biotic community in Nigeria, characterized by a mix of grassland and scattered trees. It supports diverse flora and fauna due to its favorable climatic conditions and fertile soils.
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Question 74
In an ecosystem, the organism which changes light energy into stored chemical energy is the
Producers, such as green plants and algae, convert sunlight into chemical energy through photosynthesis. This stored energy becomes the primary energy source for consumers in the ecosystem, supporting food chains.
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Question 75
In the theory of use and disuse Lamarck proposed that evolution occurred because of the following except
Lamarck's theory of evolution emphasizes acquired characteristics through use or disuse, not natural selection. Natural selection is part of Darwin’s theory, not Lamarck’s, making it the exception in this context.
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Question 76
The basis of growth involves the following processes except
Growth in living organisms results from cell division, enlargement, and differentiation. Cell reduction does not contribute to growth; instead, it would decrease the number or size of cells, which is contrary to growth.
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Question 77
Which of the following organs can be considered vestigial in humans but functional in other mammals
The human appendix is vestigial; it has lost most of its original digestive function. In other mammals, particularly herbivores, it plays a role in digesting cellulose and processing plant material.
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Question 78
The study which involves the inter-relationship between groups of organisms or species of organisms living together in an area is
Synecology is the branch of ecology that examines interactions among different species in a community and how they coexist, compete, and influence each other’s population dynamics within an ecosystem.
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Question 79
Thunderstorm can be beneficial to plants because it
Thunderstorms contribute to nitrogen fixation in the atmosphere. Lightning converts nitrogen gas into nitrates, which are deposited in the soil through rainfall, providing essential nutrients that promote plant growth.
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Question 80
A flowering plant having both the male and female flowers on the same plant is said to be
A monoecious plant bears both male and female flowers on the same individual, allowing self-pollination or cross-pollination. This contrasts with dioecious plants, which have male and female flowers on separate plants.
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The word in capital letters has the emphatic stress. Choose the option to which the given sentence relates.
My bag is made of LEATHER.
Speculators in the market who anticipate that prices will rise in the future are referred to as __________.
| Details | ₦ | Details | ₦ |
| Bal. b/f | 3,250 | Bal. b/f | 215 |
| Sales | 19,075 | Bank | 16,387.50 |
| Dishonoured cheque | 625 | Discount | 862.50 |
| Stopped cheque | 250 | Returns inwards | 325 |
| Bal c/d | 230 | Set off | 900 |
| Bal c/d | 4,740 | ||
| Total | 23,430 | Total | 23,430 |
| Bal b/d | 4,740 | Bal b/d | 230 |
The amount ₦16,387.50 described as "Bank" represents
People should be held accountable for their own behaviour, and if holding people accountable for their own behaviour entails capital punishment, then so be it. However, no person should be held accountable for behaviour over which he or she had no control.
Which of the following is the most logical conclusion of the argument above?