Dichotomy Keys

What is monster # 2 ?

• Alienus Fuzzicus

• Alienus Stripicus

• Alienus Tritoothicus

• Alienus Blobicus

What is monster # 6 ?

• Alienus Stripicus

• Alienus Tritoothicus

• Alienus Hairicus

• Alienus Quadlegicus

What is a dichotomy key?

• A key that divides a set of items into two distinct groups based on a specific characteristic.

• A term used in computer programming.

Explain the concept of dichotomy keys with an example.

• Dichotomy keys are used to categorize words based on their length.

• Dichotomy keys can be created by separating words into two groups: those that start with a vowel and those that start with a consonant.

Discuss the potential drawbacks of using dichotomy keys.

• Overcomplication

• Limited flexibility, oversimplification, risk of overlooking nuances

What is the role of dichotomy keys in data modeling?

• Dichotomy keys play a crucial role in establishing relationships between entities in data modeling.

• Dichotomy keys are used for data encryption in data modeling

Compare dichotomy keys with composite keys.

• Dichotomy keys are multi-column, while composite keys are single-column.

• Dichotomy keys are single-column, while composite keys consist of multiple columns.

How can dichotomy keys improve query performance?

• By slowing down the query execution time

• By reducing the number of comparisons needed to find a specific record

Which of the following is most helpful for identifying an organism using a dichotomous key?

• Its physical structures.

• Its average lifespan.

• Its sources of food.

• Its habitat.

Tags

NGSS.MS-LS4-2

A labeled illustration of a shark is provided, along with a dichotomous key. Using the dichotomous key, what shark is shown?

• Cow shark

• Great white

• Hammerhead

• Saw shark