- What are Udeonychophora commonly known as?
- A) Velvet worms
- B) Earthworms
- C) Segmented worms
- D) Flatworms
Answer: A) Velvet worms
- Which habitat do Udeonychophora primarily inhabit?
- A) Marine
- B) Freshwater
- C) Terrestrial
- D) Aerial
Answer: C) Terrestrial
- Udeonychophora have which type of body symmetry?
- A) Radial symmetry
- B) Bilateral symmetry
- C) Asymmetry
- D) Trilateral symmetry
Answer: B) Bilateral symmetry
- The body covering of Udeonychophora is made of:
- A) Chitinous cuticle
- B) Scales
- C) Shell
- D) Exoskeleton
Answer: A) Chitinous cuticle
- What is the primary method of locomotion in Udeonychophora?
- A) Swimming
- B) Crawling
- C) Gliding
- D) Burrowing
Answer: B) Crawling
- Which of the following structures helps Udeonychophora in locomotion?
- A) Tentacles
- B) Limbs
- C) Cilia
- D) Setae
Answer: B) Limbs
- Udeonychophora primarily feed on:
- A) Plant matter
- B) Detritus
- C) Small invertebrates
- D) Algae
Answer: C) Small invertebrates
- The respiratory system of Udeonychophora consists of:
- A) Gills
- B) Tracheae
- C) Lungs
- D) Diffusion
Answer: B) Tracheae
- What type of circulatory system do Udeonychophora possess?
- A) Open circulatory system
- B) Closed circulatory system
- C) No circulatory system
- D) Simple circulatory system
Answer: A) Open circulatory system
- Which of the following is a characteristic feature of Udeonychophora?
- A) Segmented body
- B) Hard exoskeleton
- C) Soft, flexible body
- D) High metabolic rate
Answer: C) Soft, flexible body
- Udeonychophora reproduce primarily through:
- A) Asexual reproduction
- B) Sexual reproduction
- C) Budding
- D) Fragmentation
Answer: B) Sexual reproduction
- What is the developmental strategy of Udeonychophora?
- A) Direct development
- B) Indirect development
- C) Both A and B
- D) None of the above
Answer: B) Indirect development
- Which of the following is NOT a known genus of Udeonychophora?
- A) Peripatus
- B) Eoperipatus
- C) Onychophora
- D) Tardigrada
Answer: D) Tardigrada
- What is the primary role of the slime glands in Udeonychophora?
- A) Locomotion
- B) Defense
- C) Digestion
- D) Respiration
Answer: B) Defense
- The nervous system of Udeonychophora is characterized by:
- A) A centralized brain
- B) A nerve net
- C) A simple ganglion
- D) Absent
Answer: A) A centralized brain
- Udeonychophora are most closely related to which of the following groups?
- A) Arthropods
- B) Annelids
- C) Mollusks
- D) Echinoderms
Answer: A) Arthropods
- The eyes of Udeonychophora are generally:
- A) Compound eyes
- B) Simple eyes (ocelli)
- C) Absent
- D) Multilayered
Answer: B) Simple eyes (ocelli)
- What is the main ecological role of Udeonychophora?
- A) Primary producers
- B) Predators
- C) Decomposers
- D) Herbivores
Answer: B) Predators
- Udeonychophora are characterized by having:
- A) A hard shell
- B) Paired appendages
- C) Unjointed legs
- D) No legs
Answer: C) Unjointed legs
- The diet of Udeonychophora consists mainly of:
- A) Bacteria
- B) Fungi
- C) Small arthropods
- D) Detritus
Answer: C) Small arthropods
- The habitat of Udeonychophora is primarily found in:
- A) Tropical rainforests
- B) Deserts
- C) Grasslands
- D) Arctic regions
Answer: A) Tropical rainforests
- What type of eyes do Udeonychophora possess?
- A) Compound eyes
- B) Simple eyes
- C) No eyes
- D) Photo-receptive cells
Answer: B) Simple eyes
- The reproductive strategy of Udeonychophora typically involves:
- A) External fertilization
- B) Internal fertilization
- C) Asexual budding
- D) Parthenogenesis
Answer: B) Internal fertilization
- The Udeonychophora have which of the following feeding adaptations?
- A) Rasping mouthparts
- B) Filter feeding
- C) Proboscis
- D) Siphon
Answer: A) Rasping mouthparts
- The presence of chitin in Udeonychophora is found in:
- A) Their cuticle
- B) Their exoskeleton
- C) Their digestive tract
- D) Their nervous system
Answer: A) Their cuticle
- Udeonychophora can be found in which of the following ecosystems?
- A) Marine ecosystems
- B) Freshwater ecosystems
- C) Terrestrial ecosystems
- D) All of the above
Answer: C) Terrestrial ecosystems
- The body of Udeonychophora is divided into:
- A) Segments
- B) Segments and regions
- C) Regions only
- D) None of the above
Answer: C) Regions only
- Udeonychophora are important for studying:
- A) Evolutionary biology
- B) Marine biology
- C) Plant ecology
- D) None of the above
Answer: A) Evolutionary biology
- The conservation status of many Udeonychophora species is:
- A) Least Concern
- B) Vulnerable
- C) Critically Endangered
- D) Data Deficient
Answer: D) Data Deficient
- Udeonychophora have a unique defense mechanism involving:
- A) Bioluminescence
- B) Toxicity
- C) Slime secretion
- D) Color change
Answer: C) Slime secretion.