Question

• Punch card key
Answer
A Consist of card of suitable size with
names of all The taxa printed on each
one of them.
B. Consist of pair of contrasting
characters each Statement of which is a
lead.
C. Consist of Both A and B
D. None of the above​

Answer 1

Answer:

B

Explanation:

punch card key which cards consists a information about contrasting ccharacters ,like color ,size ,flowers etc

Answer 2

option (C) is the correct answer

Explanation:

• option (c) consist of both A and B is the correct option

• according to the given question, The keys are based on a pair of  characters known as a couplet: It basically depicts a decision between two opposing possibilities, with one being accepted and the other being rejected.

• Students use punched card keys in schools, colleges, etc Punched card keys are made up of cards of a sufficient size with the names of all the taxa (all families, genera) printed on each one.

hence, option (C) is the correct answer