Which is NOT a social animal?
- A. Ant
- B. Bee
- C. Butterfly
- D. Termite
- E. Wolf
What type of association does an epiphyte on a tree trunk illustrate?
- A. Cannibalism
- B. Commensalism
- C. Parasitism
- D. Saprophytism
- E. Symbiosis
Which organism is NOT a filter feeder?
- A. Adult mosquito
- B. Copepod
- C. Mosquito larva
- D. Oyster
- E. Whale
The organelle which is contractile in function in Euglena is the
- A. Chloroplast
- B. Eyespot
- C. Gullet
- D. Myoneme
- E. Paramylon
Which world biomes can be found in Nigeria?
- A. Afro-alpine
- B. Coniferous forest
- C. Dessert
- D. Savannah
- E. Tundra
The vector of trypanosome is the
- A. black fly
- B. cockroach
- C. house –fly
- D. mosquito
- E. Tsetse fly
The genotype of a species with respect to a particular trait can be determined by carrying out
- A. a back cross with a pure stock known to be recessive for that trait
- B. a cross between two F, generations that are heterozygous for the trait
- C. a testcross with a pure stock known to be dominant for the trait
- D. in-breeding among the members of the species
- E. out-breeding with an exotic variety of the species
Soil fertility is NOT conserved by
- A. continuous cropping
- B. contour ridging
- C. Crop rotation
- D. Mulching
- E. Terracing
The tissue which carries organic food from its site of production to all other parts of the plant is called the
- A. Cambium
- B. Epidermis
- C. Phloem
- D. Sclerenchyma
- E. Xylem
The number of individuals of a species per unit area of the habitat can be best described as
- A. Distribution
- B. Frequency
- C. Percentage cover
- D. Population size
- E. Population density
Which caste is NOT found in termites?
- A. Drone
- B. King
- C. Queen
- D. Soldier
- E. Worker
A cell that is capable of self existence is a/an
- A. Amoeba
- B. Human cheek cell
- C. Onion epidermal cell
- D. ovum
- E. spermatozoom
The first bone of the vertebral column located in the neck region is called
- A. Atlas
- B. Axis
- C. Caudal.
- D. Cervical.
- E. Thoracic
The movement of food in soluble form within the vascular bundles to all parts of the plant is known as
- A. Diffusion
- B. Evaporation
- C. Transportation
- D. Translocation
- E. Transpiration
Which plant hormone inhibits the development of lateral buds in plants
- A. Abscisic acid
- B. Auxins
- C. Cytokinins
- D. Florigen
- E. gberelIins
The scientist who propounded the theory of inheritance of acquired characters via use and disuse was
- A. August Weismann
- B. Charles Darwin
- C. Gregory Mendel
- D. Jean Lamarck
- E. Thomas Morgan
The toad’s long sticky tongue is an adaptation for
- A. Catching insects
- B. Conserving water
- C. Escaping from its predators
- D. Regulating, body temperature
- E. Securing mates
The process through which excess amino acids in the body are broken down into urea and a carbohydrate is called
- A. deamination
- B. denaturation
- C. detoxication
- D. emulsification
- E. excretion
Which is NOT a benefit of conservation of natural resources?
- A. Permits nature studies
- B. Preserves the beauty of nature
- C. Prosecutes poachers
- D. Protects endangered species
- E. Sources of revenue earning
Which plant stores food in its roots?
- A. Cassava
- B. Cocoyam
- C. Irish potato
- D. Onion
- E. Yam
Which is NOT an adaptive feature of hydrophytes?
- A. Air spaces in tissues for buoyancy
- B. Broad leaves to enhance transpiration
- C. Extensive root system for absorption of water
- D. Fibrous root for absorption of water
- E. Waxy cuticle on leaves to prevent wetting