BIO044 (LECTURE) MOD 12 SUBPHYLUM MYRIAPODA

Question 1

Comprise about 80% of all known species of animals, making them the dominant animals on the earth.

Answer 1

Phylum Arthropoda

Question 2

Phylum Arthropoda means

Answer 2

“joint-foot”

Question 3

Phylum Arthropoda characterized with having a:

Answer 3

*Bilaterally symmetrical
* segmented body
* exoskeleton

Question 4

Bilaterally symmetrical, segmented body, exoskeleton made with _______ a hard material made of protein, that can form protective plates around their body.

Answer 4

Chitin

Question 5

Types of chitin

Answer 5

*Tergum
* Sternum
* Pleura

Question 6

The chitin plates on the dorsal side of the body.

Answer 6

Tergum

Question 7

The chitin plates on the ventral side of the body.

Answer 7

Sternum

Question 8

The chitin plates on the lateral sides of the body.

Answer 8

Pleura

Question 9

They posses a nervous system similar to annelids but have well-developed sense organ.

Answer 9

Phylum Arthropoda

Question 10

They have open circulatory system and their blood called:

Answer 10

Hemocoel/hemolymph

Question 10

They have a complete digestive system, and their mouth may have feeding appendages for either chewing, sucking, or lapping.

Answer 10

Phylum Arthropoda

Question 10

Their respiratory may include:

Answer 10

Gills, trachea, or book lungs (because the organ is shaped like pages of a book)

Question 10

For excretion, most anthropods release waste through the :

Answer 10

Malphigian tubules

Question 10

This phylum is the largest group in the animal kingdom.

Answer 10

Phylum Arthropoda

Question 10

Phylum Arthropoda is divided into 4 subphylums:

Answer 10

• Subphylum Chelicerata
  *Subphylum Myriapoda
• Subphylum Crustacea
• Subphylum Hexapoda

Question 10

Include horsesea, crabs, spiders, Scorpions, ticks mites.

Answer 10

Subphylum Chelicerata

Question 10

Includes all centipedes and millipedes.

Answer 10

Subphylum Myriapoda

Question 10

Include crabs, lobsters, shrimps and crayfish.

Answer 10

Subphylum Crustacea

Question 10

Comprises all 6-legged insects.

Answer 10

Subphylum Hexapoda

Question 10

Their segmented body are divided into groups called:

Answer 10

Tagmata

Question 10

Translates to “many feet”; they are the simplest living arthropods.

Answer 10

Myriapoda

Question 10

Body is covered by hardened plates of ________.

Answer 10

Exoskeleton

Question 10

Body is covered by hardened plates of exoskeleton made of both:

Answer 10

Chitin and calcium carbonate

Question 10

Tagmatas (2)

Answer 10

*Head
* Segmented Trunk

Question 11

Bears a pair of segmented antennae

Answer 11

Head

Question 11

They are just made of 2 clusters of simple eyes called, which only detects light and dark.

Answer 11

Ocelli

Question 11

Mouthparts are designed for chewing, consist of a pair of?

Answer 11

Prominent mandibles

Question 11

Each segment may be dorsoventrally flattened(centipedes) or cylindrical (millipedes)

Answer 11

Segmented Trunk

Question 11

Each segment has 1 or 2 pairs of jointed legs

Answer 11

Segmented Trunk

Question 11

Each segment has well-developed and hardened tergum, but the sternum is weak and reduced called:

Answer 11

Tergites

Question 12

Class Common name (Class CHILOPODA & class DIPLOPODA)

Answer 12

• Body
• Legs
• Defense
• Diet

Question 13

Class CHILOPODA

Answer 13

Centipedes

Question 14

Class DIPLOPODA

Answer 14

Millepedes

Question 15

1st pair of legs are modified into:

Answer 15

Poisonous claws

Question 16

Secrete toxins

Answer 16

Repugnatorial glands

Question 17

Class CHILOPODA (Centipedes)

Answer 17

Carnivorous hunters

Question 18

Class DIPLOPODA (Millepedes)

Answer 18

Herbivorous scavengers

Question 19

Body- Dorsoventrally flattened(15-177 segments, but it’s always an odd number)

Answer 19

Class CHILOPODA (Centipedes)

Question 20

Legs- Long legs; 1 pair per segment
Legs of 1st segment not for walking;
Last pair of legs has sensory function;
Fast and agile walk

Answer 20

Class CHILOPODA (Centipedes)

Question 21

Body- Cylindrical )24-100 segments)

Answer 21

Class DIPLOPODA (Millipedes)

Question 22

Legs- Short legs;2 pair per segment
When immature, only 1 pair has of legs per segment;
Slow and graceful walk

Answer 22

Class DIPLOPODA (Millipedes)

Question 23

Exoskeleton is very hard and “____” when disturbed to protect it’s weak sternum.

Answer 23

“Coils”
Class DIPLOPODA (Millipedes)