- Nematomorpha is commonly known as what type of organism?
- A) Flatworms
- B) Horsehair worms
- C) Roundworms
- D) Segmented worms
Answer: B) Horsehair worms
- What type of body symmetry do nematomorphs exhibit?
- A) Bilateral symmetry
- B) Radial symmetry
- C) Asymmetry
- D) None of the above
Answer: A) Bilateral symmetry
- Nematomorphs primarily inhabit which type of environment?
- A) Terrestrial
- B) Aquatic
- C) Parasitic in hosts
- D) All of the above
Answer: D) All of the above
- Which life stage is typically free-living in nematomorphs?
- A) Egg
- B) Larval
- C) Adult
- D) Juvenile
Answer: C) Adult
- Nematomorphs are known to have a body that is:
- A) Segmented
- B) Smooth and cylindrical
- C) Flat and leaf-like
- D) Jointed
Answer: B) Smooth and cylindrical
- The larval stage of nematomorphs typically parasitizes which type of organism?
- A) Insects
- B) Fish
- C) Mammals
- D) Birds
Answer: A) Insects
- Which of the following is a characteristic feature of nematomorphs?
- A) True coelom
- B) Pseudocoelom
- C) Lack of body segmentation
- D) Presence of setae
Answer: C) Lack of body segmentation
- Nematomorphs are primarily known for their role as:
- A) Decomposers
- B) Predators
- C) Parasites
- D) Primary producers
Answer: C) Parasites
- What is the primary mode of reproduction in nematomorphs?
- A) Asexual reproduction
- B) Sexual reproduction
- C) Budding
- D) Fragmentation
Answer: B) Sexual reproduction
- Which of the following structures is absent in nematomorphs?
- A) Digestive system
- B) Nervous system
- C) Circulatory system
- D) Excretory system
Answer: A) Digestive system
- Adult nematomorphs typically feed on:
- A) Algae
- B) Detritus
- C) Small aquatic animals
- D) They do not feed
Answer: D) They do not feed
- Nematomorphs are part of which phylum?
- A) Nematoda
- B) Annelida
- C) Nematomorpha
- D) Platyhelminthes
Answer: C) Nematomorpha
- The body of a nematomorph is covered by:
- A) A chitinous cuticle
- B) A soft epidermis
- C) Scales
- D) A hard shell
Answer: A) A chitinous cuticle
- Which of the following is a common host for nematomorph larvae?
- A) Earthworms
- B) Beetles
- C) Snails
- D) Spiders
Answer: B) Beetles
- Nematomorphs typically reproduce in:
- A) Freshwater
- B) Saltwater
- C) Terrestrial environments
- D) All of the above
Answer: D) All of the above
- What is the main ecological role of adult nematomorphs?
- A) Parasites of other animals
- B) Contributing to nutrient cycling
- C) Prey for other animals
- D) All of the above
Answer: D) All of the above
- Which of the following nematomorphs is known to cause behavioral changes in their hosts?
- A) Gordius species
- B) Ascaris species
- C) Trichinella species
- D) Enterobius species
Answer: A) Gordius species
- The larval stage of nematomorphs is known to:
- A) Live independently
- B) Inhabit the host’s body
- C) Feed on the host’s blood
- D) Have a complete digestive system
Answer: B) Inhabit the host’s body
- The term “gordian worm” refers specifically to:
- A) Annelids
- B) Nematodes
- C) Nematomorphs
- D) Cnidarians
Answer: C) Nematomorphs
- In which year was the phylum Nematomorpha established?
- A) 1758
- B) 1817
- C) 1848
- D) 1902
Answer: C) 1848
- Nematomorphs typically undergo which type of development?
- A) Direct development
- B) Indirect development
- C) Metamorphosis
- D) Parasitic development
Answer: B) Indirect development
- The primary form of locomotion in nematomorphs is:
- A) Swimming
- B) Crawling
- C) Floating
- D) Burrowing
Answer: A) Swimming
- What happens to nematomorphs when they mature in their host?
- A) They become dormant
- B) They grow and exit the host
- C) They die within the host
- D) They change hosts
Answer: B) They grow and exit the host
- What is a unique reproductive feature of nematomorphs?
- A) They are hermaphrodites
- B) They can reproduce asexually
- C) They have multiple mating strategies
- D) They do not reproduce
Answer: A) They are hermaphrodites
- Which of the following statements about nematomorphs is true?
- A) They have a closed circulatory system.
- B) They are exclusively marine organisms.
- C) They are not true parasites.
- D) They possess a complex nervous system.
Answer: C) They are not true parasites.
- The body length of nematomorphs can reach up to:
- A) 1 cm
- B) 10 cm
- C) 50 cm
- D) 1 meter
Answer: D) 1 meter
- Which structure do nematomorphs use for locomotion?
- A) Setae
- B) Cilia
- C) Muscles
- D) Tentacles
Answer: C) Muscles
- What is the primary diet of nematomorph larvae?
- A) Plant matter
- B) Blood of the host
- C) Detritus
- D) Other small invertebrates
Answer: B) Blood of the host
- In adult nematomorphs, the reproductive organs are located:
- A) Anteriorly
- B) Posteriorly
- C) Along the sides
- D) Distributed evenly throughout the body
Answer: B) Posteriorly
- The classification of nematomorphs places them in which kingdom?
- A) Plantae
- B) Fungi
- C) Animalia
- D) Protista
Answer: C) Animalia