Passage II

The order Anura includes frogs and toads. Table 1 is a key for identifying some anurans in national forests in California.

Tables 2 describes 4 anurans that were seen in national forests in California.

11. According to Table 1, Rana cascadae and Rana muscosa both have which of the following traits?

Answer and Explanation

Your Answer is

Correct Answer is B

Explanation

Look at step 9 in table 1, find Rana cascadae;

Look at step 10 again, find Rana muscosa, and find that the difference between the two is whether there are black spots on back, neck, and head;

If you find the common ground between the two, then go one step further, that is, step 7, which is characterized by groin color yellow or orange (go to step 9);

Going forward is step 6, characterized by skin folds on back present (go to step 7)