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
7a. Leaf bases attached opposite each other on branch = Step 8
7b. Leaf bases attached staggered on branch = Step 11
8a. Leaves lobed = Maple
8b. Leaves not lobed = Step 9
9a. Leaves heart shaped = Catalpa
9b. Leaves not heart shaped = Dogwood

Which best describes dogwood leaves?
They are lobed, simple leaves and are attached staggered on the branch.
They are not heart shaped and are attached staggered on the branch.
They are compound, broad leaves and are attached oppositely on the branch.
They are nonlobed, simple leaves and are attached oppositely on the branch.

Answer 1

Its D

Step-by-step explanation:

I took the test and got a 100.

Answer 2

They are nonlobed, simple leaves and are attached oppositely on the branch.

Step-by-step explanation:

A dichotomous key is a tool you use in biology to know the identity of things in nature such as trees,flowers, fish or even rocks. This key has choices that follow each other in a progressive manner, where one choice led to the other until you identify the item.In this case, to identify Dogwood, you follow the below steps;

1b. Broad leaf = Step 2

2b. Simple leaf = Step 7

7a. Leaf bases attached opposite each other on branch = Step 8

8b. Leaves not lobed = Step 9

9b. Leaves not heart shaped = Dogwood

The key is (1b,2b,7a,8b,9b)