The Living world 1 - From Past 28 Years Questions NEET Notes | EduRev

Q.1. Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.    (2019)
(a) Mangifera Indica
(b) Mangifera Indica Car. Linn.
(c) Mangifera indica Linn.
(d) Mangifera Indica
Ans. (c)
Solution.
According to binomial nomenclature the first word denoting the genus starts with a capital letter while the specific epithet starts with a small letter.
Example: Scientific name of mango is Mangifera indica. 

Name of the author appears after the specific epithet, i.e., at the end of biological name and is written in an abbreviated form.
Example: Mangifera indica Linn.
It indicates that this species was first described by Linnaeus.

Q.2. Which of the following is against the rules of ICBN?    (2019)
(a) Handwritten scientific names should be underlined.
(b) Every species should have a generic name and a specific epithet.
(c) Scientific names are in Latin and should be italicized when printed.
(d) Generic and specific names should be written starting with small letters.
Ans. (d)
Solution.
According to international code for botanical nomenclature (ICBN) the first word denoting the genus starts with a capital letter while the specific epithet starts with a small letter.

Q.3. Match the items given in Column I with those in column II and select the correct option given below.    (2018)

Ans. (d)

Q.4. The label of a herbarium sheet does not carry information on    (2016)
(a) Date of collection
(b) Name of collector
(c) Local names
(d) Height of the plant.
Ans. (d)
Solution.
A herbarium is a collection of plants, which have been dried, pressed, mounted on herbarium sheets, identified and classified according to some approved system of classification. The storage of herbarium sheets forms a repository for future use.
A printed label (7 x 12 cm) giving the following information is fixed on the lower, right corner of herbarium sheet:
(i) Scientific name of plant
(ii) Common/vernacular name
(iii) Family
(iv) Locality
(v) Date of collection
(vi) Collection number
(vii) Name of collector
(viii) Plant characteristics (optional)
(ix) Name of institution (optional)

Q.5. Match column I with column II for housefly classification and select the correct option using the codes given below.    (2016)

(a) A-(iii), B-(i), C-(iv), D-(ii)
(b) A-(iii), B-(ii), C-(iv), D-(i)
(c) A-(iv), B-(iii), C-(ii), D-(i)
(d) A-(iv), B-(ii), C-(i), D-(iii)
Ans. (a)

Q.6. Study the four statements (A - D) given below and select the two correct ones out of them.
A. Definition of biological species was given by Ernst Mayr.
B. Photoperiod does not affect reproduction in plants.
C. Binomial nomenclature system was given by R.H. Whittaker.
D. In unicellular organisms, reproduction is synonymous with growth.
The two correct statements are    (2016)
(a) B and C
(b) C and D
(c) A and D
(d) A and B.
Ans. (c)
Solution.
Photoperiod affects flowering and reproduction in plants. Binomial nomenclature system was given by Carolus Linnaeus.

Q.7. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?    [2016]
(a) Biological names can be written in any language
(b) The first word in a biological name represents the genus name, and the second is a specific epithet
(c) The names are written in Latin and are italicized when printed
(d) When written by hand, the names are to be underlined
Ans:  (a)
Solution.
Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages.
Fig: Binomial nomenclature
Q.8. It is much easier for a small animal to run uphill than for a large animal, because    [2016]
(a) It is easier to carry a small body weight.
(b) Smaller animals have a higher metabolic rate.
(c) Small animals have a lower O₂ requirement.
(d) The efficiency of muscles in large animals is less than in the small animals.
Ans: (b)
Solution.
Basal metabolic rate is inversely proportional to body size, therefore, the smaller animals have a higher metabolic rate. Hence, more energy- is produce in smaller organisms .