Year : 
2017
Title : 
Biology
Exam : 
JAMB Exam

Paper 1 | Objectives

11 - 20 of 49 Questions

# Question Ans
11.

Size, colour and fingerprints are examples of ______

A. physiological variation

B. discontinuous variation

C. morphological variation

D. adaptive variation

Detailed Solution

Morphological variation includes aspects of the outward appearance i.e shape, structure, color, pattern, size which is in contrast to physiology variation which deals primarily with function.

Morphological variation arises from a number of factors which can be bluntly classified as either genetic or environmental implanted into the process of evolution.


There is an explanation video available below.
12.

The level of organization in spirogyra and volvox is

A. organ

B. system

C. cell

D. Tissue

Detailed Solution

The spirogyra and volvox are cells. The spirogyra is a cell acting as a FILAMENT while in the Volvox, it's a cell as a COLONY.
There is an explanation video available below.
13.

Which of the following scenarios is an example of cohesion?

A. Water molecules stick to the surface of a mirror.

B. Water sticks to the walls of blood vessels.

C. Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.

D. Water molecules stick to one another and form a bead

Detailed Solution

There is an explanation video available below.
14.

The common thing in plant and animal cell is

A. chloroplast

B. cell wall

C. nucleus

D. centrioles

Detailed Solution

There is an explanation video available below.
15.

The modification in structure, physiology and behaviour of plant and animal is called ______

A. adaptation

B. evolution

C. variation

D. succession

Detailed Solution

Adaptation is process by which an animal or plant species becomes fitted to its environment; it is the result of natural selection’s acting upon heritable variation. Even the simpler organisms must be adapted in a great variety of ways: in their structure, physiology, and genetics, in their locomotion or dispersal, in their means of defense and attack, in their reproduction and development, and in other respects.


Evolution explains how living things change over a long time, and how they have come to be the way they are
Variation is any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or
16.

Use the diagram to answer the question that follows

The instrument is used to measure

A. atmospheric pressure

B. relative humidity

C. direction of wind

D. speed of wind

Detailed Solution

An Anemometer is a device used for measuring wind speed and direction.
There is an explanation video available below.
17.

A bacteria that is spherically shaped is called?

A. diplobacillus

B. coccus

C. bacillus

D. vibrio

Detailed Solution

There is an explanation video available below.
18.

The flame cells are used for excretion in

A. Fluke

B. Nematode

C. Bacteria

D. Volvox

Detailed Solution

There is an explanation video available below.
19.

Food chain refers to the feeding relationships between animals in a ______?

A. Family

B. phylum

C. community

D. group

Detailed Solution

There is an explanation video available below.
20.

The host of Taenia Solium is _________

A. cow

B. pig

C. sheep

D. dog

Detailed Solution

There is an explanation video available below.
11.

Size, colour and fingerprints are examples of ______

A. physiological variation

B. discontinuous variation

C. morphological variation

D. adaptive variation

Detailed Solution

Morphological variation includes aspects of the outward appearance i.e shape, structure, color, pattern, size which is in contrast to physiology variation which deals primarily with function.

Morphological variation arises from a number of factors which can be bluntly classified as either genetic or environmental implanted into the process of evolution.


There is an explanation video available below.
12.

The level of organization in spirogyra and volvox is

A. organ

B. system

C. cell

D. Tissue

Detailed Solution

The spirogyra and volvox are cells. The spirogyra is a cell acting as a FILAMENT while in the Volvox, it's a cell as a COLONY.
There is an explanation video available below.
13.

Which of the following scenarios is an example of cohesion?

A. Water molecules stick to the surface of a mirror.

B. Water sticks to the walls of blood vessels.

C. Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.

D. Water molecules stick to one another and form a bead

Detailed Solution

There is an explanation video available below.
14.

The common thing in plant and animal cell is

A. chloroplast

B. cell wall

C. nucleus

D. centrioles

Detailed Solution

There is an explanation video available below.
15.

The modification in structure, physiology and behaviour of plant and animal is called ______

A. adaptation

B. evolution

C. variation

D. succession

Detailed Solution

Adaptation is process by which an animal or plant species becomes fitted to its environment; it is the result of natural selection’s acting upon heritable variation. Even the simpler organisms must be adapted in a great variety of ways: in their structure, physiology, and genetics, in their locomotion or dispersal, in their means of defense and attack, in their reproduction and development, and in other respects.


Evolution explains how living things change over a long time, and how they have come to be the way they are
Variation is any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or
16.

Use the diagram to answer the question that follows

The instrument is used to measure

A. atmospheric pressure

B. relative humidity

C. direction of wind

D. speed of wind

Detailed Solution

An Anemometer is a device used for measuring wind speed and direction.
There is an explanation video available below.
17.

A bacteria that is spherically shaped is called?

A. diplobacillus

B. coccus

C. bacillus

D. vibrio

Detailed Solution

There is an explanation video available below.
18.

The flame cells are used for excretion in

A. Fluke

B. Nematode

C. Bacteria

D. Volvox

Detailed Solution

There is an explanation video available below.
19.

Food chain refers to the feeding relationships between animals in a ______?

A. Family

B. phylum

C. community

D. group

Detailed Solution

There is an explanation video available below.
20.

The host of Taenia Solium is _________

A. cow

B. pig

C. sheep

D. dog

Detailed Solution

There is an explanation video available below.