Dichotomus Key

A botanist discovers a new plant in the jungle. Which of the
following observations of the plant’s characteristics would be useful in determining its identity with a dichotomous key?

• It was discovered in the summertime
• It is wet from a recent rain storm.
• Its leaves curl up on the edges.
• It is eaten by native jungle ants.

When using a dichotomous key to identify organisms, what do we look at?

• physical features
• weather patterns
• environment
• diet

Tags

NGSS.MS-LS4-2

What is a dichotomous key used for in science?

• To organize biomes
• Classify organisms
• Identify bacteria only
• None of these

Tags

NGSS.MS-LS4-2

A student discovers an arachnid with a segmented abdomen, long legs, and a tail with no stinger. The student uses the dichotomous key below to identify it. Which arachnid has the student found?

• Whip Scorpion
• Wind Scorpion
• Daddy long legs
• Scorpion

Using this dichotomous key, identify the name of the circled Fish, J.

• peacock flounder
• band-tail puffer
• trumpet fish
• spotted goat fish

Tags

NGSS.MS-LS4-2

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 insects is given. To what order does an insect with two pairs of scaly wings belong?

• Coleoptera
• Heteroptera
• Diptera
• Lepidoptera

What is the name of bird W?

• Certhidea
• Geospiza
• Camarhynchus
• Platyspiza

Tags

NGSS.MS-LS4-2

Which of the following is an accurate description of the fiddler crab?

• 3 Paris of walking legs on both sides

• Two propodus

• 3 Chelipeds

• A pair of eyes

Tags

NGSS.MS-LS4-2

Which letter in the picture has two pairs of wings?

• M

• K

• F

• L