Species are considered as 
1. artificial concept of human mind which cannot be defined in absolute terms
2. real units of classification devised by taxonomists
3. real basic units of classification
4. the lowest units of classification

Select correct combination of the statements regarding
the taxonomical aids.
A. Herbaria serve as quick referral systems in
    taxonomical studies.
B. Keys are generally analytical in nature.
C. Manuals provide the index to the plant species
    found in a particular area.
D. Museums have collections of preserved animal
    specimens only, for study and reference.

1. A, B, C

2. B, D

3. A, B

4. A, C

What is incorrect statements-

1. Organisms that can respond to stimuli are with a well developed nervous system..

2. Generally growth and reproduction are mutually exclusive events in higher organism.

3. Mules and sterile worker bees do not reproduce.

4. Metabolic reactions may take place in isolated cell-free systems

Which of the following is against the rules of ICBN?

The contrasting characteristics generally in a pair used for identification of animals in Taxonomic Key are referred to as:

1. Lead

2. Couplet

3. Doublet

4. Alternate 

In how many organisms present below in the box in which reproduction is synonymous with growth?

Amoeba, Yeast, Diatom, Mules, Spirogyra, Mangifera, Panthera, Datura and Gonyaulax

1. 7
2. 5
3. 4
4. 6

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. The number of species in a taxon depends on their relative degree of similarity.
1. Only III
2. Only IV
3. Only II
4. Only I

What do A, B and C represent in the given scientific name respectively?

Mangifera                      Indica                 Linn

     C                                   B                       A

1. Generic name, specific name and author's name

2. Specific name, generic name and author's name

3. Author's name, specific name and generic name

4. Generic name, author's name and specific name

Mark the incorrect one (with respect to taxonomic key)

1. Based on contrasting characters

2. Generally analytical in nature

3. Each statement is called couplet 

4. used for identification of plants or animals

Animals, dogs and mammals represent

1. Taxa at different levels

2. Taxonomic hierarchy

3. Taxa at equivalent level

4. Categories at equivalent level