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Question

Use the dichotomous key to answer the question.

Dichotomous Key

1a. Needle leaves: go to step 2

1b. Non-needles leaves: go to step 3

2a. Needles are grouped in clusters: pine tree

2b. Needles are individually arranged: spruce tree

3a. Simple (individual) leaves: go to step 4

3b. Compound leaves (leaflets): go to step 5

4a. Leaf edge is smooth and lobed: oak tree

4b. Left edge is rough and tooth-like: elm tree

5a. Leaflets are attached at one point: chestnut tree

5b. Leaflets are attached at many points: walnut tree



Examine the leaf.

Non-needle green leaf with compound leaves attached at the center.

What kind of tree is the leaf from?

(1 point)
Responses

oak
oak

elm
elm

walnut
walnut

chestnut

1 answer

Based on the description provided, the leaf is a non-needle green leaf with compound leaves attached at the center. According to the dichotomous key:

  1. Since it is a non-needle leaf, we go to step 3.
  2. The leaf has compound leaves (leaflets), so we go to step 5.
  3. The leaflets are attached at one point, which is characteristic of the chestnut tree.

So, the answer is chestnut.