Zoology Exam 4 Study Guide
Questions and Answers
Describe reproduction in Order Araneae - Answer--Complex courtship rituals
-Males store sperm packets in pedipalps and transfer to female.
Explain difference in neurotoxic and cytotoxic venom. - Answer--Neurotoxic affects
nervous system
-Cytotoxic destroys all cells. It acts on red blood cells and tissue.
What are some habitats of Order Aranae? - Answer-Terrestrial, Aquatic, Bananas,
People's mouths
What is in Order Scorpionida? - Answer-Scorpions
What is a unique trait of Order Scorpionida? - Answer-Their pedipalps capture prey
and the chelicerae rip them apart.
What is the morphology of Order Scorpionida? - Answer--Short cephalothorax, pre-
abdomen, post-abdomen
What is in Order Solpugida? - Answer-Solpugids (Sun Camel Spiders)
What is a unique trait of Order Solpugida? - Answer-They have large chelicerae to
shred their prey.
What is in Order Opiliones? - Answer-Harvestmen (granddaddy long legs)
What is a unique trait of Order Opiliones? - Answer--They don't have a constricting
pedicel.
-Their legs easily shed if grasped.
What is in Order Acari? - Answer-Ticks and Mites
What is the unique morphology and harmful features of Ticks? - Answer--
Cephalothorax and abdomen completely fused-one single body.
-Mouth parts on capitulum.
-Transmit causative agents of many diseases.
What is in Subphylum Myriapoda? - Answer-Centipedes and Millipedes
What is the morphology of Subphylum Myriapoda? - Answer--2 tagmata, Head and
trunk
-1 pair of antennae
-Mandible and two pairs of maxillae
-Legs are uniramous
, What is in Class Chilopoda? - Answer-Centipedes
What are unique features of Class Chilopoda? - Answer--Each segment contains
one pair of legs
Describe Class Chilopoda's sensory adaptations - Answer--Maxillipeds on first
segment are modified to venom claws
-Pair of eyes consists of group of ocelli
What is in Class Diplopoda? - Answer-Millipedes
What are unique features of Class Diplopoda? - Answer--They have Cylindrical
bodies
-Four thoracic segments with one pair of legs
-Abdominal segments with two pairs of legs
-Typically herbivorous
-Sometimes toxic
What is in Subphylum Crustacea? - Answer-Lobsters, Crawfish, Shrimp, Crabs,
Water Fleas, Copepods, and Barnacles
What is the morphology of Crustaceans? - Answer--3 Tagmata
-Cephalothorax
-Dorsal Covering is the Carapace
What is the physical morphology of Crustaceans? - Answer--2 Pairs of antennae
-Head with mandibles
-2 pairs of maxillae
-1 pair of appendages on each additional segment
-Biramous
What are the six different types of appendages in Crustaceans? - Answer-1)
Maxillipeds-Part of the eating system
2) Walking Legs
3) Chelipeds with Chela (Chelipeds are whole arms. Chela are just the pincher part.)
4) Swimmerets-Endopods, Exopods
5) Gonopods-First abdominal segment
6) Uropods-Flattened back fin that allows the Crustacean to swim backward.
What are the steps of Ecdysis? - Answer-1) Old cuticle thins
2) Underlying epidermis grows
3) Epidermis secretes three things:
-New epicuticle
-Digestive enzymes
-New exocuticle
4) Ecdysis
5) New endocuticle is formed
6) Tanning
Questions and Answers
Describe reproduction in Order Araneae - Answer--Complex courtship rituals
-Males store sperm packets in pedipalps and transfer to female.
Explain difference in neurotoxic and cytotoxic venom. - Answer--Neurotoxic affects
nervous system
-Cytotoxic destroys all cells. It acts on red blood cells and tissue.
What are some habitats of Order Aranae? - Answer-Terrestrial, Aquatic, Bananas,
People's mouths
What is in Order Scorpionida? - Answer-Scorpions
What is a unique trait of Order Scorpionida? - Answer-Their pedipalps capture prey
and the chelicerae rip them apart.
What is the morphology of Order Scorpionida? - Answer--Short cephalothorax, pre-
abdomen, post-abdomen
What is in Order Solpugida? - Answer-Solpugids (Sun Camel Spiders)
What is a unique trait of Order Solpugida? - Answer-They have large chelicerae to
shred their prey.
What is in Order Opiliones? - Answer-Harvestmen (granddaddy long legs)
What is a unique trait of Order Opiliones? - Answer--They don't have a constricting
pedicel.
-Their legs easily shed if grasped.
What is in Order Acari? - Answer-Ticks and Mites
What is the unique morphology and harmful features of Ticks? - Answer--
Cephalothorax and abdomen completely fused-one single body.
-Mouth parts on capitulum.
-Transmit causative agents of many diseases.
What is in Subphylum Myriapoda? - Answer-Centipedes and Millipedes
What is the morphology of Subphylum Myriapoda? - Answer--2 tagmata, Head and
trunk
-1 pair of antennae
-Mandible and two pairs of maxillae
-Legs are uniramous
, What is in Class Chilopoda? - Answer-Centipedes
What are unique features of Class Chilopoda? - Answer--Each segment contains
one pair of legs
Describe Class Chilopoda's sensory adaptations - Answer--Maxillipeds on first
segment are modified to venom claws
-Pair of eyes consists of group of ocelli
What is in Class Diplopoda? - Answer-Millipedes
What are unique features of Class Diplopoda? - Answer--They have Cylindrical
bodies
-Four thoracic segments with one pair of legs
-Abdominal segments with two pairs of legs
-Typically herbivorous
-Sometimes toxic
What is in Subphylum Crustacea? - Answer-Lobsters, Crawfish, Shrimp, Crabs,
Water Fleas, Copepods, and Barnacles
What is the morphology of Crustaceans? - Answer--3 Tagmata
-Cephalothorax
-Dorsal Covering is the Carapace
What is the physical morphology of Crustaceans? - Answer--2 Pairs of antennae
-Head with mandibles
-2 pairs of maxillae
-1 pair of appendages on each additional segment
-Biramous
What are the six different types of appendages in Crustaceans? - Answer-1)
Maxillipeds-Part of the eating system
2) Walking Legs
3) Chelipeds with Chela (Chelipeds are whole arms. Chela are just the pincher part.)
4) Swimmerets-Endopods, Exopods
5) Gonopods-First abdominal segment
6) Uropods-Flattened back fin that allows the Crustacean to swim backward.
What are the steps of Ecdysis? - Answer-1) Old cuticle thins
2) Underlying epidermis grows
3) Epidermis secretes three things:
-New epicuticle
-Digestive enzymes
-New exocuticle
4) Ecdysis
5) New endocuticle is formed
6) Tanning
