Year : 
1995
Title : 
Biology
Exam : 
WASSCE/WAEC MAY/JUNE

Paper 1 | Objectives

51 - 60 of 60 Questions

# Question Ans
51.

An individual with blood group AB can receive blood from those in blood group(s)

A. AB only B

B. A and B only

C. B only

D. AB and O only

E. A, B, AB and O

E

52.

The statement that the environment determines which organisms survives to reproduce

A. explains the theory of acquired characters

B. supports Jean Lamarck’s theory of use and disuse

C. supports the idea of survival of the fittest

D. is refuted by fossil records

E. implies that organisms modify their environment in order to survive.

C

53.

Which of the following is a definition of heredity? It is the

A. non-resemblance of closely related organisms

B. total absence of parental traits in offspring

C. absence of variation in organisms

D. transfer of characteristics from parents to offspring

E. cause of infant mortality.

D

54.

Which of the following is not a reason why an offspring looks different from its parents?

A. Random reorganisation of chromosome during gamete formation

B. Existence of multiple alleles in organisms

C. Formation of chasmata in chromatids during meiosis

D. Mutation which gives rise to new combination of gene

E. Mitosis of the zygote produces new combination of chromosomes

D

55.

The pair of genes expressed in a heterozygous individual is described as

A. allele

B. chromatid

C. dominant gene

D. centrosome

E. chromomere

C

56.

The following structures are adaptation for water conservation except

A. sunken stomata

B. scales in animals

C. lenticels in stems

D. spines in plants

E. thick leaves

C

57.

The following structures are adaptation for water conservation except

A. sunken stomata

B. scales in animals

C. lenticels in stems

D. spines in plants

E. thick leaves

Detailed Solution

Lenticel permits the exchange of gases between the environment and the internal tissue spaces of the organs (stems and some fruits) . They permit the entrance of oxygen and simultaneously the output of carbon dioxide and water vapor.
58.

Which of the following ecological factors causes food shortage?

A. Low rate of reproduction

B. Emigration

C. Drought

D. Topography

E. wind direction

C

59.

Density, mortality rate, birth rate are the factors that affect

A. population

B. dominance

C. cover

D. habitat

E. abiotic community

A

60.

Ultra-filtration process at the Bowman’s capsule is facilitated by

A. the volume of water in the blood

B. the high concentration of urea in the blood of the Bowman’s capsule

C. the differential blood pressure between the glomerulus and the Bowman’s capsule

D. the differential blood volume between the glomerulus and the Bowman’s capsule

E. heavy weight of the urea, water, glucose and amino acids in the Bowman’s capsule.

C

51.

An individual with blood group AB can receive blood from those in blood group(s)

A. AB only B

B. A and B only

C. B only

D. AB and O only

E. A, B, AB and O

E

52.

The statement that the environment determines which organisms survives to reproduce

A. explains the theory of acquired characters

B. supports Jean Lamarck’s theory of use and disuse

C. supports the idea of survival of the fittest

D. is refuted by fossil records

E. implies that organisms modify their environment in order to survive.

C

53.

Which of the following is a definition of heredity? It is the

A. non-resemblance of closely related organisms

B. total absence of parental traits in offspring

C. absence of variation in organisms

D. transfer of characteristics from parents to offspring

E. cause of infant mortality.

D

54.

Which of the following is not a reason why an offspring looks different from its parents?

A. Random reorganisation of chromosome during gamete formation

B. Existence of multiple alleles in organisms

C. Formation of chasmata in chromatids during meiosis

D. Mutation which gives rise to new combination of gene

E. Mitosis of the zygote produces new combination of chromosomes

D

55.

The pair of genes expressed in a heterozygous individual is described as

A. allele

B. chromatid

C. dominant gene

D. centrosome

E. chromomere

C

56.

The following structures are adaptation for water conservation except

A. sunken stomata

B. scales in animals

C. lenticels in stems

D. spines in plants

E. thick leaves

C

57.

The following structures are adaptation for water conservation except

A. sunken stomata

B. scales in animals

C. lenticels in stems

D. spines in plants

E. thick leaves

Detailed Solution

Lenticel permits the exchange of gases between the environment and the internal tissue spaces of the organs (stems and some fruits) . They permit the entrance of oxygen and simultaneously the output of carbon dioxide and water vapor.
58.

Which of the following ecological factors causes food shortage?

A. Low rate of reproduction

B. Emigration

C. Drought

D. Topography

E. wind direction

C

59.

Density, mortality rate, birth rate are the factors that affect

A. population

B. dominance

C. cover

D. habitat

E. abiotic community

A

60.

Ultra-filtration process at the Bowman’s capsule is facilitated by

A. the volume of water in the blood

B. the high concentration of urea in the blood of the Bowman’s capsule

C. the differential blood pressure between the glomerulus and the Bowman’s capsule

D. the differential blood volume between the glomerulus and the Bowman’s capsule

E. heavy weight of the urea, water, glucose and amino acids in the Bowman’s capsule.

C