Biology Past Questions And Answers
The complex energy-rich organic matter which living organisms need for life is
- A. water
- B. air
- C. food
- D. mineral salts
The genetic make-up of an organism is called
- A) genotype
- B) phenotype
- C) variation
- D) gene
In which of the following processes is carbondioxide not given out?
- A. Respiration in plants
- B. Decay of organism
- C. Burning of organic matter
- D. During photosynthesis
An example of cryptic colouration is the
- A. Mottled colours on the moths that rest in lichens
- B. bright colour of an insect pollinated flower
- C. Green colour of a plant
- D. Bright marks on poisonous tropical frog on veriegated leaves
(a) Name five vertebrae in mammals with their corresponding locations in the table below.
(b) State one function each of the following parts in a dicotyledonous leaf: (i) palisade; (ii) vascular bundle; (iii) epidermis.
(c)State one function each of the following parts in the stem of a flowering plant: (i) sieve tube; (ii) cortex; (iii) pith.
(d) In a tabular form, state:
(i) two external structural differences between the stem and root of a maize seeding.
(ii) two internal structural differences between the stem and root of a maize seeding
View Discussion (0)WAEC 2021 THEORYThe term cell was given by
- A. Robert Hooke
- B. Schwann
- C. De Bary
- D. Tatum
Which of these organs can be considered vestigial in humans but functional in other mammals? The
- A. liver
- B. appendix
- C. rectum
- D. stomach
The blackfly is a vector of
- A. malaria
- B. trypanosomiasis
- C. onchocerciasis
- D. yellow fever
In complex food relationships in a community, the primary, secondary and tertiary consumers are referred to as
- A. symbionts
- B. omnivores
- C. heterotrophs
- D. autotrophs
Which of the following defines symbiosis?
- A. parasites feed on dead organisms
- B. both organisms benefit mutually by living together
- C. Saprophytes feed on living organisms
- D. organisms serve as host to parasite