Consider the following statements :
(i) Increase in mass and increase in number of individuals are twin characteristics of growth.
(ii) A multicellular organism grows by cell division.
(iii) In plants, the growth is seen up to a certain age.
(iv) In majority of higher animals and plants growth and reproduction are mutually inclusive events.
(v) The growth exhibited by non-living objects is by accumulation of materials on the surface.
Choose the correct option :
1. (i) and (iii) 2. (iii) and (iv)
3. (i), (ii) and (iii) 4. (i) and (ii)
From the following statements, select those that are true for reproduction.
(i) It is not an all-exclsuive defining characteristic of living organisms.
(ii) It is not an all-inclusive defining characteristic of living organisms.
(iii) It is not an all-exclusive defining characteristic of plants and fungi only.
(iv) Photoperiod affects reproduction in seasonal plant breeders only.
(v) Photoperiod affects reproduction in seasonal plants and animals breeders.
(vi) Photoperiod has no role in reproduction.
1. (ii) and (v) 2. (iii) and (iv)
3. (iv) and (vi) 4. All of these
Select the incorrect statement for consiciousness as one of the characteristic of living organisms.
1. It is the most technically complicated process.
2. It is present in all organisms whether unicellular or multicellular.
3. It is an obvious feature not found in prokaryotes.
4. It is regarded as a defining feature of living organisms.
Mayer’s biological concept of species is mainly based on
1. Morphological traits.
2. Reproductive isolation.
3. Modes of reproduction.
4. Morphology and reproduction.
Which of the following is incorrect with respect to binomial nomenclature?
1. Biological names are generally in Latin.
2. The first word in a biological name represents the genus.
3. Biological names are printed in italics.
4. The first word of the genus starts with a small letter.
Which of the following statements about classification is not true?
(i) Members of a family are less similar than members of an included genus.
(ii) An order has more members than the number of members in an included genus.
(iii) Families have more members than phyla.
(iv) Members of a family share a common ancestor in the more distant past than members of an included genus.
(v) The number of species in a taxon depends on their relative degree of similarity.
1. Only (iii)
2. Only (iv)
3. Only (v)
4. None of these
An important function of botanical garden is
1. Providing beautiful area for recreation.
2. One can observe tropical plants over there.
3. They allow exsitu conservation of germplasm.
4. To allow reproduction freely with each other and form seeds.
Which one of the following is not a correct statement?
1. Keys are analytical in nature.
2. Zoological parks have collection of living animals for reference.
3. A monograph gives a detailed account of all the plant species found in a particular geographical area.
4. Carolous Linnaeus is regarded as father of nomenclature.
Which of the following is not true for a species -
1. Members of a species can interbreed
2. Variations occur among members of a species
3. Gene flow does not occur between the populations of a species
4. Each species is reproductively isolated from every other species.
Select correct match between Column I and II
Column I Column II
a. As quick referral system (i) Monograph
in taxonomical studies
b. Collection of preserved (ii) Herbaria
plants and animals
c. Index to the plant species (iii) Museum
found in a particular area
d. Complete information of (iv) Flora
any one taxon
1. a(iv), b(iii), c(ii), d(i)
2. a(ii), b(iii), c(i), d(iv)
3. a(iii), b(ii), c(iv), d(i)
4. a(ii), b(iii), c(iv), d(i)