Question

31. Class Copepoda a. It includes crabs, lobsters, crayfish, shrimps, b. Fairy shrimp and brine shrimp c. Copepods d. Barnacles

32. Class Branchiopoda a. It includes crabs, lobsters, crayfish, shrimps, b. Fairy shrimp and brine shrimp c. Copepods d. Barnacles

33. Class Cirripedia a. It includes crabs, lobsters, crayfish, shrimps, b. Fairy shrimp and brine shrimp c. Copepods d. Barnacles

34. Class Chilopoda a. Their bodies are flattened in cross section, and they have a single pair of long legs on each of their 15 or more trunk segments. b. Their very small size and thin moist exoskeleton allow gas exchange across the body surface and diffusion of nutrients and wastes in the body cavity. c. The posterior segment may have one pair of spinnerets or long, sensory bristles d. This is divided in three tagmata: head, thorax and abdomen.

35. Class Symphyla a. Their bodies are flattened in cross section, and they have a single pair of long legs on each of their 15 or more trunk segments. b. Their very small size and thin moist exoskeleton allow gas exchange across the body surface and diffusion of nutrients and wastes in the body cavity. c. The posterior segment may have one pair of spinnerets or long, sensory bristles d. This is divided in three tagmata: head, thorax and abdomen.

36. Class Hexapoda a. Their bodies are flattened in cross section, and they have a single pair of long legs on each of their 15 or more trunk segments. b. Their very small size and thin moist exoskeleton allow gas exchange across the body surface and diffusion of nutrients and wastes in the body cavity. c. The posterior segment may have one pair of spinnerets or long. d. This is divided in three tagmata: head, thorax and abdomen.

37. Class Pauropoda a. Their bodies are flattened in cross section, and they have a single pair of long legs on each of their 15 or more trunk segments. b. Their very small size and thin moist exoskeleton allow gas exchange across the body surface and diffusion of nutrients and wastes in the body cavity. c. The posterior segment may have one pair of spinnerets or long. d. This is divided in three tagmata: head, thorax and abdomen.

38. _____________________________ are in the base of the antennae of most insects. Long setae that vibrate when certain frequencies of sound strike them cover the antennae of these insects. a. Tympanal organs b. Malphigian Tubules c. Johnston’s organ d. Ommatidia

39. ___________________________ are in the legs of crickets and katydids, in the abdomen of the grasshoppers and some moth. a. Tympanal organs b. Malphigian Tubules c. Johnston’s organ d. Ommatidia

40. This kind of Insect pheromones laid down by foraging insects to help other members of a colony identify the location and quantity of food found by one member of the colony. a. Sex pheromones b. Aggregation pheromones c. Trailing pheromones

Answer 1

31). c. Copepods

Copepods (class copepoda) are small crustaceans that can be located in sea and freshwater habitat. Eg: Cyclops species.

32). b. Fairy shrimp and brine shrimp

The class Branchiopod includes Fairy shrimp and brine shrimp.

33). d. Barnacles

The class Cirripedia includes barnacles that are either sessile or parasitic. Eg: Balanus species.