- Arachnids are characterized by having how many pairs of legs?
- A) Two
- B) Four
- C) Six
- D) Eight
Answer: D) Eight
- Which of the following is NOT a class within the Arachnida?
- A) Araneae (spiders)
- B) Scorpiones (scorpions)
- C) Diplopoda (millipedes)
- D) Acari (mites and ticks)
Answer: C) Diplopoda (millipedes)
- Arachnids breathe through structures called:
- A) Gills
- B) Lungs
- C) Book lungs or tracheae
- D) Skin
Answer: C) Book lungs or tracheae
- Which of the following arachnids is known for having a venomous sting?
- A) Spider
- B) Tick
- C) Scorpion
- D) Mite
Answer: C) Scorpion
- The body of an arachnid is divided into two main parts known as:
- A) Head and thorax
- B) Cephalothorax and abdomen
- C) Thorax and abdomen
- D) Head and abdomen
Answer: B) Cephalothorax and abdomen
- Arachnids are primarily:
- A) Herbivores
- B) Carnivores
- C) Omnivores
- D) Parasites
Answer: B) Carnivores
- Which of the following arachnids uses silk for building webs?
- A) Scorpion
- B) Tick
- C) Spider
- D) Mite
Answer: C) Spider
- What is the main function of the chelicerae in arachnids?
- A) Sensory reception
- B) Locomotion
- C) Feeding
- D) Defense
Answer: C) Feeding
- Which class of arachnids includes the largest species?
- A) Scorpiones
- B) Araneae
- C) Pseudoscorpiones
- D) Acari
Answer: A) Scorpiones
- Ticks are known to transmit which of the following diseases?
- A) Malaria
- B) Lyme disease
- C) Zika virus
- D) Tuberculosis
Answer: B) Lyme disease
- The term “molting” in arachnids refers to:
- A) The process of feeding
- B) The shedding of the exoskeleton
- C) The mating process
- D) The development of young
Answer: B) The shedding of the exoskeleton
- Arachnids do NOT have:
- A) Antennae
- B) Compound eyes
- C) Jointed legs
- D) An exoskeleton
Answer: A) Antennae
- Which of the following is a common feature of all arachnids?
- A) Wings
- B) Three body segments
- C) Eight legs
- D) Soft bodies
Answer: C) Eight legs
- The primary diet of most arachnids consists of:
- A) Plant material
- B) Blood
- C) Other small animals
- D) Decaying matter
Answer: C) Other small animals
- The lifespan of arachnids can range from:
- A) Days to months
- B) Weeks to years
- C) Months to decades
- D) Hours to days
Answer: C) Months to decades
- Which arachnid is known for its ability to regenerate lost limbs?
- A) Spider
- B) Scorpion
- C) Harvestman
- D) Tick
Answer: C) Harvestman
- Arachnids can be found in:
- A) Aquatic environments only
- B) Terrestrial environments only
- C) Both aquatic and terrestrial environments
- D) Only in extreme habitats
Answer: B) Terrestrial environments only
- What type of sensory structures do arachnids possess?
- A) Compound eyes
- B) Simple eyes and hairs
- C) Echolocation
- D) Chemoreceptors only
Answer: B) Simple eyes and hairs
- The venom of some spiders is primarily used for:
- A) Digestion
- B) Defense
- C) Prey immobilization
- D) Camouflage
Answer: C) Prey immobilization
- Which of the following is NOT a typical habitat for arachnids?
- A) Forests
- B) Deserts
- C) Oceans
- D) Grasslands
Answer: C) Oceans
- The scientific study of arachnids is known as:
- A) Entomology
- B) Arachnology
- C) Zoology
- D) Myrmecology
Answer: B) Arachnology
- In which class would you find the horsehair worm?
- A) Scorpiones
- B) Araneae
- C) Acari
- D) Pseudoscorpiones
Answer: C) Acari
- The order of arachnids that includes harvestmen is called:
- A) Opiliones
- B) Solifugae
- C) Pseudoscorpiones
- D) Scorpiones
Answer: A) Opiliones
- Which of the following arachnids can be found in freshwater environments?
- A) Spider
- B) Scorpion
- C) Mite
- D) Tick
Answer: C) Mite
- How do most arachnids catch their prey?
- A) Hunting
- B) Trapping in webs
- C) Luring with pheromones
- D) All of the above
Answer: D) All of the above
- The venom of the black widow spider primarily affects:
- A) The respiratory system
- B) The nervous system
- C) The circulatory system
- D) The digestive system
Answer: B) The nervous system
- Which arachnids are known for their ability to live in extremely arid conditions?
- A) Scorpions
- B) Spiders
- C) Ticks
- D) Mites
Answer: A) Scorpions
- Which of the following is a distinguishing feature of the class Arachnida?
- A) Presence of wings
- B) No antennae
- C) Segmented bodies
- D) Three pairs of legs
Answer: B) No antennae
- The primary reproductive strategy of arachnids involves:
- A) Oviparity
- B) Viviparity
- C) Ovoviviparity
- D) Both A and C
Answer: D) Both A and C
- Which of the following statements about arachnids is FALSE?
- A) They all produce silk.
- B) They have a simple or compound eye structure.
- C) They do not have wings.
- D) They have an exoskeleton.
Answer: A) They all produce silk.