What is NOT an abiotic factor?
- A. Humidity
- B. predators
- C. temperature
- D. turbidity
- E. wind
Evidence of organic evolution can be deduced from all the following EXCEPT
- A. Antecology
- B. Comparative anatomy
- C. Embryology
- D. Fossil records
- E. Geographical distribution
Which one is NOT an essential part of a flower?
- A. Anther
- B. Filament
- C. Ovary
- D. Peta
- E. Stigma
Which is a morphological variation
- A. Ability to taste PTC
- B. Ability to roll the tongue
- C. Behaviour
- D. Blood group
- E. Finger print
What is NOT a kidney disease?
- A. Cirrhosis
- B. Kidney stones
- C. Nephritis
- D. Uraemia
- E. Wilm’s tumour
What is NOT a reflex action?
- A. Blinking of an eye
- B. Jerking of the knee
- C. Leaning
- D. Salivating
- E. Sneezing
The gradient of land can be measured with an instrument called a/an
- A. Aneroid barometer
- B. Hygrometer
- C. Metre rule
- D. Secchi disc
- E. Slope gauge
Which pollutant is likely to cause cholera?
- A. agricultural wastes
- B. industrial wastes
- C. nuclear fallouts
- D. oil spillages
- E. untreated sewage
Which is NOT an effect of the food shortage on a population?
- A. Cannibalism
- B. Competition
- C. Increase in mortality
- D. Increase in natality
- E. migration
Which is the most ecologically viable method of insect pest control?
- A. Draining all stagnant pools of water
- B. Eliminating one of the development stages of the insect
- C. Employing a lot of labourers to physically handpick the insect pests
- D. Erecting physical barriers against insect pests
- E. Using stronger insecticides which can kill a greater number of insect.
Bacteria; which derive energy by oxidizing certain inorganic compounds, are said to be
- A. Chemosynthetic
- B. Holozoic
- C. Parasitic
- D. Photosynthetic
- E. Saprophytic
Which part of the brain regulates and co-ordinates muscular movements?
- A. Cerebellum
- B. Cerebrum
- C. Hypothalamus
- D. Medulla oblongata
- E. ThaIamus
The cell organelle, from which spindle fibers originate during cell division in animal cells is known as
- A. Centrosome
- B. Chromosome
- C. Leucoplast
- D. Lysosome
- E. Ribosome
The blood vessel that supplies blood rich in digested food to the liver is the
- A. Hepatic artery
- B. Hepatic portal artery
- C. Hepatic portal vein
- D. Hepatic vein
- E. Renal artery
Which of these allelic pairs represent homozygous dominant trait?
- A. TT
- B. Tt
- C. tt
- D. Bb
- E. bb
Which of the following statements is NOT true according to the first and second laws of thermodynamics ?
- A. In all energy conversions a certain amount is always lost as heat
- B. In any given ecosystem the energy transformations can be classified into catabolic and anabolic processes
- C. The energy at one trophic level is the same as the next higher or the one below it
- D. The sun is the ultimate source of energy in the universe
- E. The total energy in an ecosystem retains constant
Which organisms are NOT autotrophic?
- A. algae
- B. Ferns
- C. fungi
- D. grasses
- E. mosses
The genetic composition of an organism is termed
- A. an allele
- B. a cross
- C. a genotype
- D. a phenotype
- E. a hybrid
Use the information to answer this question.
I. Smoking
II. Sun drying
III. Freezing
IV. Canning
V. Salting
VI. Pasteurization
A method of food preservation that works on the principle of dehydration is
- A. I
- B. II
- C. I ,II ,and V
- D. II ,III, and V
- E. IV
Which ONE is not an adaptation for water conservation in plant found is arid region?
- A. absence of leaves
- B. leaves reduced to spines
- C. raised stomata
- D. sunken stomata
- E. thick stems
Which of these is NOT a method of asexual reproduction?
- A. budding
- B. fission
- C. fusion
- D. fragmentation
- E. layering