Question

use this portion of a dichotomous key for tree identification to answer the question.
1a. needlelike leaf ➔ step 10
1b. broad leaf ➔ step 2
2a. compound leaf ➔ step 3
2b. simple leaf ➔ step 7
3a. leaves attached at single point ➔ buckeyes
3b. leaves attached at many points ➔ step 4
4a. leaf bases attached opposite each other on branch ➔ ash
4b. leaf bases attached staggered on branch ➔ step 5

what are the characteristics of a buckeyes leaf?
○ needlelike simple leaves attached opposite each other on the branch
○ broad simple leaves attached at single points on the branch
○ broad compound leaves attached at single points on the branch
○ needlelike compound leaves attached staggered on the branch

Explanation:

Step1: Analyze 1b

Since Buckeyes is identified at Step 3, and Step 3 comes from 2a, which comes from 1b. So leaf is broad (1b: broad leaf) and compound (2a: compound leaf).

Step2: Analyze 3a

3a says leaves attached at single point for Buckeyes.

Step3: Match with options

Check options: The third option has broad, compound, attached at single point.

Answer:

C. broad compound leaves attached at single points on the branch (assuming the third option is labeled C; if options are A - D as typical, the correct option is the one with "broad compound leaves attached at single points on the branch")