Which is a feature of a cladogram? the characteristics must be shared among the organisms. the characteristics must be different among the organisms. it must contain at least three different shared characteristics. it must contain at least three different groups of organisms.

Option (1).

Explanation:

Cladogram is used to show the the relationship among the organisms. This diagram mainly represent the group of organisms with its most recent ancestor.

Cladogram shows the cladistic relationship among the organism. Cladistic relationship is mainly based on the organisms share derived characters (synapomorphies). Hence, the cladogram must show the shared characteristics among the organisms.

Thus, the correct answer is option (1).

answer is A

Explanation:

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