Question

How many separate species, both extant and extinct, are depicted in this tree?

a) 3
b) 4
c) 5
d) 6

Answer 1

There are six separate species depicted in the phylogenetic tree.

Step-by-step explanation:

The phylogenetic tree in Table 20.2 depicts six separate species. Each row represents a different species, and the letters in each row represent different characteristics of that species. By counting the number of species represented in the table, we can determine that there are six separate species, both extant and extinct, depicted in this tree. Therefore, the correct answer to the question is d) 6.