Classifying Living Things

the process of grouping items based on their similarities

• classification
• dichotomous key
• scientific name
• taxonomy

Tags

NGSS.MS-LS4-2

the most specific level of classification: includes only one specific organism

• kingdom
• genus
• species
• family

A _______________________ is reptile that have rough and dry scaly skin.

• Crocodile

• Shark

• Grasshopper

• Cat

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

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

Tags

NGSS.MS-LS4-2

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

A labeled diagram of a fiddler crab is provided. Which of the following is an accurate observation of the structures of a fiddler crab? Fiddler crabs have -

• five pairs of walking legs on each side.
• an enlarged propodus on both front legs.
• a pair of eyes on stalks at the top of the body.
• two pairs or chelipeds for a total of four.

Tags

NGSS.MS-LS4-2

A table of arachnid and insect characteristics is shown. Which characteristic could be used to distinguish between
arachnids and insects?

• Jointed legs
• Body segments
• Presence of eyes
• Presence of antennae

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