NECO SSCE - Biology - 2000

An example of a conditioned reflex is

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

Which of these is NOT a method of asexual reproduction?

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

Which of these is NOT an excretory organ/organelle?

Maelezo ya Majibu

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

Maelezo ya Majibu

Which of these pairs best illustrates symbiotic association?

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

An organism existing at the colonial level of life is

Maelezo ya Majibu

Which statement about decomposers is NOT true?

Maelezo ya Majibu

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

Maelezo ya Majibu

An example of sex-linked trait is

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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 .

Maelezo ya Majibu

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

Maelezo ya Majibu

A common characteristic of ALL living things is

Maelezo ya Majibu

Which one is NOT an excretory product of man?

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

Which of these traits shows discontinuous variation ?

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

Which organisms are NOT autotrophic?

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

Which of these allelic pairs represent homozygous dominant trait?

Maelezo ya Majibu

The genetic composition of an organism is termed

Maelezo ya Majibu

An instrument of measuring wind speed is called

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu

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

Maelezo ya Majibu