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

Note:

There were no questions in NEET 2020 from this chapter.

Q.1. Select the correctly written scientific name of Mango, which was first described by Carolus Linnaeus.     [NEET 2019]

(a) Mangifera Indica

(b) Mangifera Indica Car. Linn

(c) Mangifera indica Linn

(d) None

Correct Answer is Option (c)

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

Q.2. Which of the following is against the rules of ICBN?     [NEET 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.

Correct Answer is Option (d)

According to the 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.     [NEET 2018]

(a) A

(b) B

(c) C

(d) D

Correct Answer is Option (d)

Q.4. The label of a herbarium sheet does not carry information on    [NEET 2016]

(a) Date of collection

(b) Name of collector

(c) Local names

(d) Height of the plant

Correct Answer is Option D

• 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 × 12 cm) giving the following information is fixed on the lower, right corner of the herbarium sheet:
  (i) Scientific name of the 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.     [NEET 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)

Correct Answer is Option (a)

The housefly (Musca domestica) is an Arthropoda (Phylum) and is classified under Class Insecta. Its taxonomy is as below:

• Phylum: Arthropoda
• Class: Insecta
• Order: Diptera
• Family: Muscidae
• Genus: Musca
• Species: Domestica

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:     [NEET 2016]

(a) B and C

(b) C and D

(c) A and D

(d) A and B

Correct Answer is Option (c) 

Photoperiod affects flowering and reproduction in plants. The 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?     [NEET 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.

Correct Answer is Option (a)

Binomial nomenclature (also called binomial 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.

Q.8. It is much easier for a small animal to run uphill than for a large animal, because     [NEET 2016]

(a) It is easier to carry 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 small animals.

Correct Answer is Option (b)

Basal metabolic rate is inversely proportional to body size. Therefore, smaller animals have a higher metabolic rate. Hence, more energy is produced in smaller organisms.