- Nemertodermatida is a class within which phylum?
- A) Annelida
- B) Acoelomorpha
- C) Nematoda
- D) Mollusca
Answer: B) Acoelomorpha
- The body shape of Nemertodermatida is typically:
- A) Cylindrical
- B) Flat and unsegmented
- C) Round
- D) Elongated
Answer: B) Flat and unsegmented
- Nemertodermatida are primarily found in which type of habitat?
- A) Freshwater
- B) Terrestrial
- C) Marine
- D) Aerial
Answer: C) Marine
- The primary mode of reproduction in Nemertodermatida is:
- A) Asexual
- B) Sexual
- C) Budding
- D) Binary fission
Answer: B) Sexual
- Nemertodermatida possess which of the following features?
- A) True coelom
- B) Protosomes
- C) Simple nervous system
- D) Complex respiratory system
Answer: C) Simple nervous system
- The diet of Nemertodermatida is primarily:
- A) Autotrophic
- B) Herbivorous
- C) Carnivorous
- D) Saprophytic
Answer: C) Carnivorous
- The body of Nemertodermatida is covered with:
- A) Scales
- B) A tough exoskeleton
- C) Ciliated epidermis
- D) A thick cuticle
Answer: C) Ciliated epidermis
- The main feeding structure of Nemertodermatida is known as the:
- A) Proboscis
- B) Mouth
- C) Tentacle
- D) Pharynx
Answer: D) Pharynx
- Nemertodermatida have a distinct larval stage called:
- A) Trochophore
- B) Planula
- C) Zygote
- D) Ciliated larva
Answer: D) Ciliated larva
- The body plan of Nemertodermatida lacks:
- A) A nervous system
- B) A digestive system
- C) A true coelom
- D) Muscle tissue
Answer: C) A true coelom
- The excretory system of Nemertodermatida is primarily:
- A) Protonephridial
- B) Malpighian tubules
- C) Simple diffusion
- D) Kidney-based
Answer: A) Protonephridial
- The evolutionary significance of Nemertodermatida is primarily in their:
- A) Complexity
- B) Primitive features
- C) Segmentation
- D) Size
Answer: B) Primitive features
- Nemertodermatida can regenerate lost body parts, which is a feature of:
- A) High metabolic rate
- B) Asexual reproduction
- C) Regenerative capabilities
- D) Symbiosis
Answer: C) Regenerative capabilities
- The locomotion of Nemertodermatida is primarily facilitated by:
- A) Cilia
- B) Flagella
- C) Muscles
- D) Tentacles
Answer: A) Cilia
- Nemertodermatida can be differentiated from Acoela by their:
- A) Presence of a coelom
- B) Body shape
- C) Presence of a mouth and pharynx
- D) Sexual reproduction
Answer: C) Presence of a mouth and pharynx
- The typical size of Nemertodermatida ranges from:
- A) 1 mm to 10 cm
- B) 0.5 mm to 5 mm
- C) 5 mm to 20 cm
- D) 1 cm to 1 m
Answer: A) 1 mm to 10 cm
- The ecological role of Nemertodermatida includes:
- A) Nutrient cycling
- B) Predators
- C) Food for other organisms
- D) All of the above
Answer: D) All of the above
- Nemertodermatida can be found in which of the following environments?
- A) Freshwater only
- B) Marine only
- C) Both freshwater and marine
- D) Terrestrial environments only
Answer: B) Marine only
- The nervous system of Nemertodermatida is:
- A) Well developed with a brain
- B) Absent
- C) Simple and diffuse
- D) Complex and segmented
Answer: C) Simple and diffuse
- Nemertodermatida’s body structure is primarily:
- A) Segmented
- B) Unsegmented
- C) Ciliated
- D) Thick and muscular
Answer: B) Unsegmented
- The ecological significance of Nemertodermatida is primarily in their role as:
- A) Primary producers
- B) Decomposers
- C) Predators of microorganisms
- D) Parasites
Answer: C) Predators of microorganisms
- Nemertodermatida exhibit which type of symmetry?
- A) Bilateral
- B) Radial
- C) Asymmetrical
- D) None
Answer: A) Bilateral
- The diet of Nemertodermatida primarily consists of:
- A) Algae
- B) Detritus
- C) Small invertebrates
- D) Plant matter
Answer: C) Small invertebrates
- The locomotion of Nemertodermatida is primarily via:
- A) Jet propulsion
- B) Gliding on cilia
- C) Swimming with fins
- D) Crawling with appendages
Answer: B) Gliding on cilia
- The body wall of Nemertodermatida is composed of:
- A) Only muscle layers
- B) Epithelial cells and muscle layers
- C) A chitinous layer
- D) No muscle layers
Answer: B) Epithelial cells and muscle layers
- Research on Nemertodermatida contributes to our understanding of:
- A) Marine ecosystems
- B) Evolutionary relationships
- C) Developmental biology
- D) All of the above
Answer: D) All of the above
- Nemertodermatida are known for their:
- A) High reproductive rate
- B) Complex behavior
- C) Simple body organization
- D) Large size
Answer: C) Simple body organization
- The habitat of Nemertodermatida can often be described as:
- A) Open ocean
- B) Sandy or muddy substrates
- C) Rocky intertidal zones
- D) All of the above
Answer: D) All of the above
- The primary mode of locomotion in Nemertodermatida involves:
- A) Muscles contracting and relaxing
- B) Using jet propulsion
- C) Gliding on mucous trails
- D) Swimming with fins
Answer: A) Muscles contracting and relaxing
- Nemertodermatida are important for studies in:
- A) Evolutionary biology
- B) Ecology
- C) Marine biology
- D) All of the above
Answer: D) All of the above