Dichotomy Key

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

Which of the following characteristics will most likely be helpful in identifying a butterfly using a dichotomous key?

• It migrates north in the summer

• It has long tail

• It likes only certain plants

• Its wings beat very fast in hot weather

Using this dichotomous key, identity the name of the circled fish.

• band-tail puffer

• spotted goat fish

• peacock flounder

• trumpet fish

A dichotomous key for trees is provided. Hikers found a tree that has large brown cones and single sharp needles. What species of tree have the hikers found?

• Juniper

• Pine

• Spruce

• Fir

Tags

NGSS.MS-LS4-2

Which characteristics are used to identify the American Robin?

• Head color, Beak shape, and Beak Color

• Head color and Beak Color

• Beak Shape and Beak Color

• Beak Color

What is the name of bird X?

• Certhidea

• Geospiza

• Camarhynchus

• Platyspiza

Tags

NGSS.MS-LS4-2

The dichotomy key above is constructed to classify the 4 animals. State the animal P ?

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Tags

NGSS.MS-LS4-2

The dichotomy key above is constructed to classify the 4 animals. State the animal Q ?

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Tags

NGSS.MS-LS4-2