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

A common characteristic of ALL living things is

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

Which of these traits shows discontinuous variation ?

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

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

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

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

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

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

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

The genetic composition of an organism is termed

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

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

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

An example of a conditioned reflex is

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

Which of these is NOT a method of asexual reproduction?

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

Which one is NOT an excretory product of man?

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

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

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

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

Which of these allelic pairs represent homozygous dominant trait?

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

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

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

An example of sex-linked trait is

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

Which statement about decomposers is NOT true?

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

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

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

Which organisms are NOT autotrophic?

An organism existing at the colonial level of life is

Which of these is NOT an excretory organ/organelle?

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 of these pairs best illustrates symbiotic association?

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

An instrument of measuring wind speed is called

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 .