Which is NOT an example of bacteria?
- A. bacilli
- B. cocci
- C. diplococci
- D. spirilli
- E. sporangia
Which organism is a primary producer?
- A. Cassava
- B. cricket
- C. grasshopper
- D. hawk
- E. lizard
The incomplete breakdown of glucose into alcohol, carbon dioxide and energy is referred to as
- A. decay
- B. digestion
- C. fermentation
- D. oxidation
- E. respiration
Which reagent is used to test for the presence of starch in a food substance?
- A. anhydrous copper (II) sulphate
- B. Fehling’s solution
- C. iodine solution
- D. iron(III) oxide
- E. Million’s reagent
Iron is mainly required by plants for_________formation.
- A. Chlorophyll
- B. glucose
- C. protein
- D. nuclear
- E. nucleproteins
A group of interacting populations in a particular habitat can be described as
- A. biome
- B. biosphere
- C. community
- D. ecosystem
- E. environment
Which division is NOT part of the atmosphere?
- A. hydrosphere
- B. mesosphere
- C. stratosphere
- D. thermosphere
- E. troposphere
What is NOT characteristic of fresh water habitats?
- A. high osmotic concentration
- B. low oxygen concentration
- C. they are flooded during the rainy season
- D. temperature changes daily
- E. they have limited size-and depth
In genetics, test cross is used to
- A. confirm the number of offspring in F1
- B. confirm the number of gametes present in parents
- C. test for heterozygosity
- D. test for X and Y chromosomes
- E. test for the phenotypic ratio
A pair of genes which controls a trait is described as
- A. allele
- B. dominant
- C. hybrid
- D. recessive
- E. variant
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