Rory is trying to identify a tree from one of its leaves. A question on the dichotomous key that he is using asks whether the leaf has 3-5 lobes or more than 5 lobes. Rory cannot tell whether the leaf in his hand has 5 or 6 lobes. What should Rory do to continue identifying the tree?

A) Look at other leaves from the same tree, and count how many lobes they have.
B) Skip this question, since one question does not make a difference.
C) Start over from the beginning of the dichotomous key.
D) Find a different dichotomous key to use that does not ask this question.

Question

10-07-2024
Biology

High School

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Rory is trying to identify a tree from one of its leaves. A question on the dichotomous key that he is using asks whether the leaf has 3-5 lobes or more than 5 lobes. Rory cannot tell whether the leaf in his hand has 5 or 6 lobes. What should Rory do to continue identifying the tree?

A) Look at other leaves from the same tree, and count how many lobes they have.
B) Skip this question, since one question does not make a difference.
C) Start over from the beginning of the dichotomous key.
D) Find a different dichotomous key to use that does not ask this question.

Answer :

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MattZayn8 MattZayn8 · Answer 1 · 2024-09-05T08:22:44-04:00

Final answer:

When uncertain about the number of lobes on a leaf while using a dichotomous key, Rory should examine other leaves from the same tree to ascertain an accurate count, ensuring precise tree identification. Therefore, the correct option is D.

Explanation:

When using a dichotomous key for tree identification and encountering ambiguity in the number of lobes on a leaf, Rory should take a closer look at other leaves from the same tree to confirm the characteristic. Since dichotomous keys rely on clear distinctions, it's important to have precise information. Hence, the correct option for Rory would be:

Look at other leaves from the same tree, and count how many lobes they have.

This approach ensures that Rory can proceed with accuracy during the identification process, helping to avoid misidentification that could result from assuming the characteristic based on a single ambiguous leaf.