What is the term for the scientific categories used to study organisms?
A) Taxa
B) Taxonomy
C) Systematics
D) Nomenclature
Answer: A) Taxa
Explanation:
The scientific term for
categories is taxa. Here you must recognise that taxa can indicate
categories at very different levels
(refer Pg.No.5 of NCERT)
Question 2
What is the basis of modern taxonomic studies?
A) External and internal structure only
B) Development process only
C) Ecological information only
D) External and internal structure, development process, and ecological information
Answer: D) External and internal structure, development process, and ecological information
Explanation:
External
and internal structure, along with the structure of cell, development
process and ecological information of organisms are essential and form
the basis of modern taxonomic studies.
(refer Pg.No.5 of NCERT)
Question 3
What is the earliest basis for classification used by human beings?
A) Morphological characteristics
B) Cellular structure
C) Ecological information
D) Uses of various organisms
Answer: D) Uses of various organisms
Explanation:
Human beings have always been
interested in knowing more and more about the various kinds of
organisms, particularly with reference to their own use. In early days,
human beings needed to find sources for their basic needs of food, clothing
and shelter. Hence, the earliest classifications were based on the ‘uses’ of
various organisms.
(refer Pg.No.5 of NCERT)
Question 4
What is the branch of study that deals with the relationships among organisms?
A) Taxonomy
B) Systematics
C) Nomenclature
D) Characterisation
Answer: B) Systematics
Explanation:
This branch of study dealing with relationship among organisms is referred to as
systematics.
(refer Pg.No.5 of NCERT)
Question 5
What is the significance of the author's name in a biological name, such as Mangifera indica Linn.?
A) It indicates the date of discovery
B) It indicates the place of discovery
C) It indicates the person who first described the species
D) It indicates the classification of the species
Answer: C) It indicates the person who first described the species
Explanation:
Name of the author appears after the specific epithet, i.e., at the end of
the biological name and is written in an abbreviated form, e.g., Mangifera
indica Linn. It indicates that this species was first described by Linnaeus.
(refer Pg.No.5 of NCERT)
Question 6
What is the relationship between taxa and levels of classification?
A) Taxa represent categories at the same level
B) Taxa represent categories at different levels
C) Taxa are independent of levels of classification
D) Taxa are only used for plant classification
Answer: B) Taxa represent categories at different levels
Explanation:
Taxa can indicate
categories at very different levels. ‘Plants’ – also form a taxa. ‘Wheat’ is
also a taxa. Similarly, ‘animals’, ‘mammals’, ‘dogs’ are all taxa – but you
know that a dog is a mammal and mammals are animals. Therefore,
‘animals’, ‘mammals’ and ‘dogs’ represent taxa at different levels
(refer Pg.No.5 of NCERT)
Question 7
What is the primary goal of taxonomy?
A) To identify individual organisms
B) To classify organisms into convenient categories
C) To study the development process of organisms
D) To understand the ecological information of organisms
Answer: B) To classify organisms into convenient categories
Question 8
What is the origin of the word "systematics"?
A) Greek word "systema"
B) Latin word "systema"
C) French word "systeme"
D) English word "system"
Answer: B) Latin word "systema"
Explanation:
The word systematics is derived from the Latin word
‘systema’ which means systematic arrangement of organisms.
(refer Pg.No.5 of NCERT)
Question 9
What are the basic processes of taxonomy?
A) Characterisation, identification, classification, and nomenclature
B) Characterisation, identification, classification, and systematics
C) Identification, classification, nomenclature, and systematics
D) Characterisation, classification, nomenclature, and ecology
Answer: A) Characterisation, identification, classification, and nomenclature
Explanation:
Characterisation, identification, classification and nomenclature
are the processes that are basic to taxonomy.
(refer Pg.No.5 of NCERT)
Question 10
What is the primary goal of systematics?
A) To identify individual organisms
B) To classify organisms into convenient categories
C) To understand the relationships among organisms
D) To study the development process of organisms
Answer: C) To understand the relationships among organisms
Explanation:
Human beings were, since long, not only interested in knowing more
about different kinds of organisms and their diversities, but also the
relationships among them. This branch of study was referred to as
systematics
(refer Pg.No.5 of NCERT)
Question 11
What is the significance of the word "systema" in the context of biology?
A) It refers to the scientific name of an organism
B) It refers to the classification of an organism
C) It refers to the systematic arrangement of organisms
D) It refers to the study of the development process of organisms
Answer: C) It refers to the systematic arrangement of organisms
Explanation:
The word systematics is derived from the Latin word
‘systema’ which means systematic arrangement of organisms.
(refer Pg.No.5 of NCERT)
Question 12
What is the primary goal of characterization in taxonomy?
A) To identify individual organisms
B) To classify organisms into convenient categories
C) To understand the ecological information of organisms
D) To describe the observable characteristics of organisms
Answer: D) To describe the observable characteristics of organisms
Question 13
What is the significance of the scientific name of an organism in taxonomy?
A) It is used to identify individual organisms
B) It is used to classify organisms into convenient categories
C) It is used to understand the ecological information of organisms
D) It provides a unique and universal identifier for an organism
Answer: D) It provides a unique and universal identifier for an organism
Explanation:
In order to facilitate the study, number of scientists have established
procedures to assign a scientific name to each known organism. The scientific names ensure that each organism
has only one name. Description of any organism should enable the people
(in any part of the world) to arrive at the same name.
(refer Pg.No.4 of NCERT)
Question 14
Systematics includes
A) Identification
B) Nomenclature
C) Classification
D) All of these
Answer: D) All of these
Explanation:
The scope of
systematics was later enlarged to include identification, nomenclature
and classification.
(refer Pg.No.6 of NCERT)
Question 15
The title of the publication used by Carolus Linnaeus was
A) Systema Naturae
B) Species Plantarum
C) Genera Plantarum
D) Philosophia Botanica
Answer: A) Systema Naturae
Explanation:
Linnaeus used Systema Naturae as the title of his publication.
(refer Pages 5,6 of NCERT)
Question 1 What would happen to the range and variety of organisms you see if you increase the area of observation? A) It would decrease B) It would remain the same C) It would increase D) It would become unpredictable View Answer Answer: C) It would increase Explanation: If you were to increase the area that you make observations in, the range and variety of organisms that you see would increase. (refer Pg.No.3 of NCERT) Question 2 Approximately how many species of living organisms are known and described? A) 1-2 million B) 1.7-1.8 million C) 2-3 million D) 3-4 million View Answer Answer: B) 1.7-1.8 million Explanation: The number of species that are known and described range betwee...
Dedicated to those who passionately chase their dream of becoming a doctor, here are the books they should be aware of. Let's dive deeper and find some books for the first year. The subjects of the first year are: A natomy Physiology Biochemistry Anatomy The initial thought that enters our minds when we think about anatomy is a skeleton hanging from the roof. That is not all about anatomy. Anatomy deals with many other systems too. Even anatomy in MBBS is subdivided into gross anatomy, embryology, histology and practicals . Gross anatomy Gross anatomy leads us to the topic of atlases. They provide us with a general summary(diagrams,pictures) of how each system and body part is arranged.They introduce the topics that we will be learning through the year. There is no better atlas out there than Netter's atlas The text...