Year : 
2004
Title : 
Biology
Exam : 
NECO - BECE

Paper 1 | Objectives

21 - 30 of 46 Questions

# Question Ans
21.

A feeding relationship in which both organisms benefit is referred to as

A. commensalism

B. parasitism

C. predation

D. saprophytism

E. symbiosis

E

22.

When a plant shows yellowing of leaves and stunted growth, the plant is deficient in

A. copper

B. iron

C. manganese

D. silicon

E. zinc

Detailed Solution

-Iron is one of the seven major / essential elements required by plants.
-Its deficiency symptoms is the yellowing of leaves
23.

The glomerular filtrate contains the following substances EXCEPT

A. blood cells

B. glucose

C. mineral salts

D. Water

E. urea

A

24.

The mouth part of a mosquito through which it sucks the blood of its victim is called

A. hypopharynx

B. mandible

C. labium

D. labrum

E. stylet

E

25.

An organism that transmits pathogens is called a

A. prey

B. commensal

C. parasite

D. symbiont

E. vector

E

26.

Which of the following factors does NOT affect photosynthesis?

A. carbon (iv) oxide

B. light intensity

C. relative humidity

D. soil water

E. temperature

C

27.

Soil factors in an ecosystems are referred to as

A. biotic

B. climatic

C. edaphic

D. physiographic

E. topographic

C

28.

Which of the following eye defects can be corrected with a bi-focal lens?

A. Astigmatism

B. Cataract

C. Hypermetropia

D. Myopia

E. Presbyopia

E

29.

Under secretion of thyroxine before maturity cause

A. cretinism

B. gigantism

C. goiter

D. myxoedema

E. obesity

A

30.

Intestinal juice contains the following enzymes EXCEPT

A. erepsin

B. lipase

C. maltase

D. sucrose

E. trypsin

E

21.

A feeding relationship in which both organisms benefit is referred to as

A. commensalism

B. parasitism

C. predation

D. saprophytism

E. symbiosis

E

22.

When a plant shows yellowing of leaves and stunted growth, the plant is deficient in

A. copper

B. iron

C. manganese

D. silicon

E. zinc

Detailed Solution

-Iron is one of the seven major / essential elements required by plants.
-Its deficiency symptoms is the yellowing of leaves
23.

The glomerular filtrate contains the following substances EXCEPT

A. blood cells

B. glucose

C. mineral salts

D. Water

E. urea

A

24.

The mouth part of a mosquito through which it sucks the blood of its victim is called

A. hypopharynx

B. mandible

C. labium

D. labrum

E. stylet

E

25.

An organism that transmits pathogens is called a

A. prey

B. commensal

C. parasite

D. symbiont

E. vector

E

26.

Which of the following factors does NOT affect photosynthesis?

A. carbon (iv) oxide

B. light intensity

C. relative humidity

D. soil water

E. temperature

C

27.

Soil factors in an ecosystems are referred to as

A. biotic

B. climatic

C. edaphic

D. physiographic

E. topographic

C

28.

Which of the following eye defects can be corrected with a bi-focal lens?

A. Astigmatism

B. Cataract

C. Hypermetropia

D. Myopia

E. Presbyopia

E

29.

Under secretion of thyroxine before maturity cause

A. cretinism

B. gigantism

C. goiter

D. myxoedema

E. obesity

A

30.

Intestinal juice contains the following enzymes EXCEPT

A. erepsin

B. lipase

C. maltase

D. sucrose

E. trypsin

E