What is wrong with respect to Key a taxanomical aid?

(1) Each statement in the key is called a lead.

(2) A single key works for each taxonomic category.

(3) Keys are analytical in nature

(4) Used for Identification purposes

Which of the following is not a mean of recording description?

Monographs can be used as

Index of plant species of a particular area can be studied by means of

Information on any one taxon can be taken out by

For the identification of the name of species found in an area, one would use

Key at a time shows

Which of the following does not hold true for couplet?
a. Basis of Keys
b. Contrasting characters
c. Has use in Museum
d. Choice is made between two opposite characters.

Key is used for-
a. Nomenclature of plants
b. Nomenclature of plants and animals
c. Identification of plants and animals
d. Identification of animals

Zoological Parks do not hold true with
a. Protected environment
b. Learning food habits and behaviour of animals
c. Conditions similar to natural habitat
d. Pet animals are also kept there under human care