Insects - Arthropoda

Question 1

T/F: Arthropods have exoskeletons unlike Annelids

Answer 1

True

Question 2

What are 5 characteristics seen in both Arthropoda and Annelida? (Hint: EPSSCM)

Answer 2

1. Eucoelomate
2. Protostome
3. Schizocoelous
4. Spiral cleavage
5. Metameric (segmented)

Question 3

Arthropods are organized by using __________

Answer 3

Phylogeny

Question 4

What are subphylum’s?

Answer 4

A taxonomic group ranking between a phylum and a class

Question 5

What are the 4 subphylum’s in Arthropoda?

Answer 5

1. Trilobita
2. Crustacea
3. Myriapoda
4. Chelicerata

Question 6

Trilobita means what?

Answer 6

3 lobe

Question 7

T/F: Sea spiders are spiders

Answer 7

False

Question 8

T/F: Daddy long leg spiders are not spiders

Answer 8

False

Question 9

The trilobite belongs to which subphylum?
A. Hexapoda
B. Crustacea
C. Myriapoda
D. Chelicerata
E. Echinodermata

Answer 9

D. Chelicerata

Question 10

What is a unique feature that the trilobite has?

Answer 10

Pincers

Question 11

T/F: Spiders belong within the subphylum Chelicerata

Answer 11

True

Question 12

T/F: Dust mites and ticks (specialized mites) do not fall under the subphylum of Chelicerata

Answer 12

False; they do!

Question 13

Marine isopods, krill, sea shrimp, water fleas, crabs, shrimp and lobsters/crayfish all fall within which subphylum?
A. Hexapoda
B. Crustacea
C. Myriapoda
D. Chelicerata
E. Echinodermata

Answer 13

B. Crustacea

Question 14

T/F: Not all centipedes are venomous

Answer 14

False; all centipedes are venomous

Question 15

The subphylum Myriapod consists of _________ and __________

Answer 15

1. Centipedes
2. Millipedes

Question 16

The subphylum Hexapoda consists of common __________

Answer 16

Insects

Question 17

What is tagmosis?

Answer 17

The division of body into regions

Question 18

T/F: Tagmosis is the same as metamerism

Answer 18

False!

Question 19

FITB: Male spiders have specialized ______ ______ used for sperm transfer

Answer 19

Boxing gloves

Question 20

T/F: Male spiders are usually larger than female spiders

Answer 20

False; males are smaller than females

Question 21

Is segmentation (metamerism) present in Arthropoda?

Answer 21

Yes

Question 22

T/F: Metamere segments in arthropods are more specialized than in annelids

Answer 22

True

Question 23

Are septa present in Arthropods?

Answer 23

Yes

Question 24

FITB: _______ allows for hard/sharp structures

Answer 24

Exoskeleton

Question 25

FITB: Harder exoskeletons contain _______ ______

Answer 25

Calcium salts

Question 26

TOT: Arthropods have a **open/closed** circulatory system

Answer 26

Open

Question 27

What are the 3 main parts associated with Arthropoda open circulatory systems?

Answer 27

1. Hemocoel (primary body cavity) 2. Hemolymph (fluid that is similar to blood that is occupied within the Hemocoel) 3. Dorsal heart

Question 28

T/F: Arthropods have a closed circuit of vessels

Answer 28

False; remember that they have an open circulatory system

Question 29

What are two muscles found within the exoskeleton that are paired together?

Answer 29

1. Antagonistic muscle 2. Striated muscle

Question 30

FITB: Arthropoda have a dorsal ____ with a connected ________ nerve cord

Answer 30

1. Brain 2. Ventral