Dichotomous Key Quiz

Based on the dichotomous key, what would the organism labeled "B" be identified as?

• Firefly because it has wings that are not covered by an exoskeleton

• Firefly because it has wings covered by an exoskeleton

• Firefly because it has an elongated shape and wings are not covered by an exoskeleton

• Firefly because it has an elongated shape and has wings covered by an exoskeleton

Based on the dichotomous key, what would the organism labeled "C" be identified as?

• Dragon fly because it has wings that are not covered by an exoskeleton

• Dragon fly because it has wings covered by an exoskeleton

• Dragon fly because it has wings pointing outwards and wings are not covered by an exoskeleton

• Dragon fly because it has an elongated shape and wings are covered by an exoskeleton

You are making a dichotomous key to identify the following animals: Tiger, Duckbill platypus, turtle, snake. What characteristics could be used to separate them into the first two EVEN groups?

• Fur and does not have fur

• Four legs and not four legs

• Stripes and no stripes

• Shell and no shell

What is a characteristic of every dichotomous key?

• A dichotomous key has only two choices at each step in the process

• A dichotomous key can only be used to identify living things

• There is only one dichotomous key for every species

• A dichotomous key can only be used to identify animal species

A student is creating a dichotomous key to identify the following organisms: jellyfish, shark, octopus, horse, cat, mouse, wolf, fox, coyote, turtle, snake, lizard.

Which of these organisms are MOST closely related based on their physical features or structures?

• wolf, fox, coyote

• horse, cat, mouse

• turtle, snake, lizard

• jellyfish, shark, octopus

Tags

NGSS.MS-LS4-2

When you create a dichotomous key, which guideline(s) do you need to follow?

• Each set of descriptive statements should have at least three selections

• Each set of descriptive statements should have only two selections

• Each set of descriptive statements should have only one selection

• None of the answer choices are correct

Which of these characteristics would be MOST useful for developing a dichotomous key for species of fish in a lake?

• What shape is the fish's head?

• Does the fish have gills?

• How large is the fish population in a lake?

• Where in the lake is the fish found?

Tags

NGSS.MS-LS4-2

How does a dichotomous key help a scientist identify an organism?

• Each step describes a characteristic the organisms have in common

• Each step describes two steps that differ

• Each step describes the color of an organism

• Each step describes how the organism moves

Based on the dichotomous key, which insect would be identified as insect "A"?

• Dragonfly

• Ladybug

• Firefly

• Bee

Diatoms can produce their own food while amoeba cannot because diatoms contain

• Flagella

• Macronuclei

• Chlorophyll

• Cilia

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6