S7L1a. Dichotomous Keys MASTERY QUIZ
1. Use the following dichotomous key to identify an irregular blue flower with five
petals and a fruit that is a ripened flower ovary or follicle.
Dichotomous Key of Ranunculaceae
#1.
#2.
#3.
#4.
a. Fruit is a group of akenes.
(go to step 2)
b. Fruit is a group of follicles.
(go to step 4)
a. Petals are not present.
(go to step 3)
b. Petals are present.
(Ranunculus)
a. The flower has 4 sepals.
(Clematis)
b. The flower has 5 sepals.
(Anemone)
a. The flowers are regular.
(Aquilegia)
b. The flowers are irregular.
(Delphinium)
The flower is a:
A. Delphinium
B. Ranunculus
C. Aquilegia
D. Anemone
2. The following chart summarizes the traits of various types of beans.
Kyle is making a dichotomous key to represent this information. On Kyle's
dichotomous key, how should step 2 look?
A. 2a. The bean is dark-colored.
2b. The bean is light-colored.
B. 2a. The bean is light-colored.
2b. The bean is dark-colored.
C. 2a. The bean is light-colored.
2b. The bean is dark-colored.
White northern
Go to step 3
Garbanzo bean
Go to step 3
White northern
Go to step 3
D. 2a. The bean is light-colored.
White northern
2b. The bean is dark-colored.
Go to step 4
Animal Groups
3. Looking at the two groups of animals provided, which of the following features of
Group 1 makes it unique from Group 2?
A. eyes
B. claws
C. feathers
D. feet
Dichotomous Key of Chlorophyll-Containing Organisms
#1. a. This organism is not a plant.
b. This organism is a plant.
#2. a. This plant does not have vascular tissue.
b. This plant has vascular tissue.
#3. a. This plant's spore-producing capsule opens by splitting
lengthwise.
(algae)
(go to step 2)
(go to step 3)
(go to step 4)
(liverworts)
b. This plant's spore-producing capsule releases spore through (mosses)
the tip of the capsule.
#4. a. This plant does not produce seeds.
b. This plant produces seeds.
#5. a. This plant has hollow stems containing silica.
b. This plant does not have hollow stems containing silica.
#6. a. This plant produces on the underside of its fronds.
b. This plant produces spores in conelike tips
#7. a. This plant does not produce flowers.
b. This plant produces flowers.
(go to step 5)
(go to step 7)
(horsetails)
(go to step 6)
(ferns)
(club mosses)
(gymnosperms)
(angiosperms)
4. Your teacher gives you a plant that has vascular tissue, produces seeds, but does
NOT produce flowers. What type of organism is it?
A. Fern
B. Gymnosperm
C. Angiosperm
D. Moss
5. The following chart summarizes the traits of various types of beans.
Kyle is making a dichotomous key to represent this information. Step 4 of his
dichotomous key is shown below. Has Kyle made an error?
4a. The bean is black.
Black Bean
4b. The bean is reddish-brown.
Kidney Bean
A. Yes; "The bean is black" should be "The bean is round."
B. Yes; the space that contains "Kidney Bean" should contain "Pinto Bean" instead.
C. Yes; the space that contains "Black Bean" should contain "Go to step 5" instead.
D. No; this part of the dichotomous key has been written correctly.
6.
#1. Does the insect have wings?
Yes
Go to #2
No
Go to #6
#2. How many pairs of wings does the insect have?
One
Order Diptera
Two
Go to #3
#3. Does the insect have very short antennae?
Yes
Go to #4
No
Order Odonata
#4. Are there two or three long, slender, tail-like appendages at the tip of the
abdomen?
Yes
Order Ephemeroptera
No
Go to 5
#5. Does the insect have five segments on each leg?
Yes
Order Neuroptera
No
Order Isoptera
#6. Is the insect ant-like with a narrow waist?
Yes
Order Hymenoptera
No
Go to 7
#7. Are the antennae long, and composed of many segments?
Yes
Order Psocoptera
No
Order Mallophaga
According to the dichotomous key above, to which order does the insect belong?
A. Odonata
B. Diptera
C. Ephemeroptera
D. Isoptera
Two scientists traveled to a remote island in the ocean. While on the island, they discovered
several animals never before seen. The scientists identified and recorded several
characteristics of each of the different animals. Those data are given in the table below.
Animal Number of legs Tail Food Habitat
A
4
yes
meat mountain
B
4
yes plants
jungle
C
6
yes plants
jungle
D
6
no plants
caves
E
8
no
meat
water
F
8
no
meat
water
The scientists needed this information in order to group the organisms. One way to do this
is to create a classification system such as the one shown in the figure below.
7. Which of the following pairs of animals CANNOT be separated into two different
categories in the classification system shown in the figure?
A. animals B and D
B. animals E and F
C. animals C and F
D. animals A and C
8. Which kingdom consists only of complex multicellular, eukaryotic organisms which
must consume or ingest other organisms for nutrition?
A. Animalia
B. Fungi
C. Eubacteria
D. Archaebacteria
9. A scientist finds a new life form and determines that it is multicellular. Which of the
6 kingdoms could it belong to?
Select the list that contains all the possible kingdoms.
A. Eubacteria, Archaebacteria, Plantae, and Animalia
B. Archaebacteria, Fungi, and Plantae
C. Protista, Fungi, Plantae, and Animalia
D. Eubacteria, Archaebacteria, Protista, and Fungi
10. A scientist finds a new life form and determines that it performs photosynthesis.
Which of the 6 kingdoms could it belong to?
Select the list that contains all the possible kingdoms.
A. Eubacteria, Archaebacteria, Fungi, and Plantae
B. Eubacteria, Archaebacteria, and Plantae
C. Protista and Plantae
D. Eubacteria, Archaebacteria, Protista, and Plantae