Dichotomous key revision

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

• physical features
• weather patterns
• environment
• diet

Tags

NGSS.MS-LS4-2

Tool used by a taxonomist to identify an unknown organism is a:

• dichotomous key
• binomial nmenclature
• scientific name
• binomial key

An illustration and a dichotomous key are given. What is the correct classification for this organism?

• Class Insecta
• Order Amblygygi
• Order Araneae
• Order Scorpiones

Tags

NGSS.MS-LS4-2

What is the purpose of a dichotomous key?

• to find a common ancestor
• to show the evolution of organisms
• to show relationships between organisms
• to identify organisms

What are the characteristics of a tiger?

• Has limbs, doesn't have opposable thumbs

• Has limbs, can produce milk, doesn't have opposable thumbs

• Has limbs, can't produce milk

• Has limbs, can produce milk, has opposable thumbs

What are the characteristics of a gorilla?

• Has limbs, doesn't have opposable thumbs

• Has limbs, can produce milk, has opposable thumbs, can speak

• Has limbs, can't produce milk

• Has limbs, can produce milk, doesn't have opposable thumbs, cannot speak

What characteristics do a salamander and human share?

• Can produce milk

• Has limbs

• Has opposable thumbs

• Has speech

Which two organisms are closely related?

• Spider and butterfly

• Snail and worm

• Worm and spider

• Centipede and snail

Which organism has legs, has wings and is active at night?

• Spider

• Butterfly

• Moth

• Snail

Which organism has no legs and no shell?

• Spider

• Snail

• Centipede

• Worm