Consider the following two statements:
I. In the single-celled organisms, we are not very clear about the usage of the two terms – growth and reproduction.
II. When it comes to unicellular organisms like bacteria, unicellular algae or amoeba, reproduction is synonymous with growth, i.e., increase in number of cells.
1. Both I and II are true and II explains I
2. Both I and II are true but II does not explain I
3. I is true but II is false
4. Both I and II are false
In single-celled organisms, growth and reproduction are often used interchangeably, and the increase in the number of cells is a direct result of reproduction.Consider the following two statements:
I. Cellular organization of the body is the defining feature of life forms.
II. Metabolic reactions cannot be demonstrated outside the body in cell-free systems.
1. Both I and II are true and II explains I
2. Both I and II are true but II does not explain I
3. I is true but II is false
4. Both I and II are false
The most obvious & complicated feature of all living organisms is:
(1) The ability to sense their surroundings or environment and respond to these environmental stimuli.
(2) Reproduction - sexual or asexual - for production of progeny of own kind.
(3) The ability to growth in size due to cell division.
(4) Presence of complex organs systems such as digestive and nervous system.
What is meant by the "species problem"?
(1) The exact definition of species is still controversial.
(2) The exact mechanisms of speciation is not known.
(3) The number of species present is much more than identified species.
(4) The extinction of species is taking place at an alarming rate.
The Indian Botanical Garden and the National Botanical Research Institute are located respectively at:
(1) Pune and Howrah
(2) Howrah and Lucknow
(3) Darjeeling and Lucknow
(4) Shimla and Dehradun
The label of a herbarium sheet does not carry information on
(1) date of collection
(2) name of collector
(3) local names
(4) height of the plant
Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses?
(1) Diplontic life cycle
(2) Members of kingdom-Plantae
(3) Mode of nutrition
(4) Multiplication by fragmentation
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)
Growth and reproduction are mutually exclusive events in
1. Bacteria and protista.
2. Protista and unicellular fungi.
3. Yeast and Paramoecium.
4. Higher plants and animals.
The label of a herbarium sheet does not carry information on:
1. date of collection
2. name of collector
3. local names
4. height of the plant