NECO SSCE - Biology - 2000

The process which ensures that the chromosome number for each species of organism remains constant from generation to generation is called

When both alleles in a heterozygous individual are fully expressed in the phenotype of the F, generation this phenomenon is described as

Which of the following is NOT a natural source of energy ?

Which of these organisms is most likely to have the least number if found within the same habitat?

Which of these allelic pairs represent homozygous dominant trait?

Which of the following sequences best illustrates a food chain in an aquatic habitat ?

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

Which organisms are NOT autotrophic?

The most likely mode of an organism that possesses attachment structure, thin outer surface layer and absence of an elaborate digestive tract is

Which of these traits shows discontinuous variation ?

Which of the following agricultural activities has the least harmful effect on the environment ?

An essential element whose deficiency in plants will result in poor growth, particularly of the roots, and is essential for cell well formation is

The group of micro-organisms that plays a vital role in the baking industry is

Which of these is NOT a method of asexual reproduction?

In a case of disputed paternity the most likely clue to resolving the problem is to match the ________________ of the baby with that of the father .

Root pressure and the transpiration pull are biophysical processes which account for the?

When a student suddenly runs into a snake on a pathway, which of these chemical messengers are released ?

Which structure of the mammalian ear when removed will affect the maintenance of balance?

Modern method of classification of living things is based on similarity of?

Which of the following statements is NOT true according to the first and second laws of thermodynamics ?

Which of these agencies do not have anything to do with conservation of natural resources?

The streaming movement of cytoplasm observed in a freshly cut leaf of a water plant is termed

Which of these is NOT an excretory organ/organelle?

Which of these is a liming factor with respect to human population size?

Which statement about decomposers is NOT true?

An essential with the dental formula I 0/3 : C 0/1 : P 3/3 : M 3/3 is most likely adapted for ___________ nutrition .

Which ONE is not an adaptation for water conservation in plant found is arid region?

Which one is NOT an excretory product of man?

Lianas is to tropical rain forest as an extensive root system is to ---------------- habitat

The genetic composition of an organism is termed

Which of these statements is NOT an idea contained in Lamarck’s theory of evolution.?

The release of sperms through the urethral opening into the vagina is called?

An example of a conditioned reflex is

An instrument of measuring wind speed is called

A common characteristic of ALL living things is

Which material is NOT necessary for the manufacture of plant food?

Two identical twin boys had different finger print. This proves that

The part of the fruit which serves a protective function is called

What is the result of placing a red blood cell in a hypertonic solution ?

Which of these pairs best illustrates symbiotic association?

An organism existing at the colonial level of life is

Which of the following agricultural practices will NOT promote soil conservation ?

An example of sex-linked trait is