- Branchiopoda is primarily characterized by which of the following features?
- A) Hard exoskeleton
- B) Flattened body
- C) Leaf-like appendages
- D) Ability to fly
Answer: C) Leaf-like appendages
- Which of the following is NOT a subclass of Branchiopoda?
- A) Anostraca
- B) Cladocera
- C) Copepoda
- D) Notostraca
Answer: C) Copepoda
- The common name for members of the subclass Cladocera is:
- A) Water fleas
- B) Brine shrimp
- C) Fairy shrimp
- D) Barnacles
Answer: A) Water fleas
- What is the primary habitat of most Branchiopoda?
- A) Deep ocean
- B) Freshwater lakes and ponds
- C) Terrestrial environments
- D) Marine coral reefs
Answer: B) Freshwater lakes and ponds
- Which of the following is a well-known species of Branchiopoda often used as fish food?
- A) Daphnia
- B) Artemia
- C) Triops
- D) Both A and B
Answer: D) Both A and B
- In Branchiopoda, the primary function of the second antennae is to:
- A) Aid in swimming
- B) Sense the environment
- C) Capture food
- D) Respiration
Answer: A) Aid in swimming
- Branchiopods are primarily:
- A) Herbivores
- B) Carnivores
- C) Omnivores
- D) Detritivores
Answer: C) Omnivores
- Which feature distinguishes Anostraca from other subclasses of Branchiopoda?
- A) Presence of a carapace
- B) Lack of a carapace
- C) Ability to fly
- D) Presence of compound eyes
Answer: B) Lack of a carapace
- Which of the following is an example of a Notostracan?
- A) Daphnia
- B) Triops
- C) Artemia
- D) Cyclops
Answer: B) Triops
- The nauplius larval stage is characteristic of which group?
- A) Copepoda
- B) Branchiopoda
- C) Both A and B
- D) Insecta
Answer: C) Both A and B
- Which of the following adaptations helps Branchiopoda survive in temporary water bodies?
- A) Ability to burrow
- B) Production of resting eggs
- C) Increased swimming speed
- D) Gills for respiration
Answer: B) Production of resting eggs
- What type of symmetry do Branchiopoda exhibit?
- A) Radial symmetry
- B) Asymmetry
- C) Bilateral symmetry
- D) None of the above
Answer: C) Bilateral symmetry
- The respiratory structures of Branchiopoda are primarily located on their:
- A) Appendages
- B) Carapace
- C) Thorax
- D) Abdomen
Answer: A) Appendages
- Which of the following statements about Branchiopoda is FALSE?
- A) They have a segmented body
- B) They possess compound eyes
- C) All are aquatic
- D) They are exclusively marine
Answer: D) They are exclusively marine
- In Branchiopoda, the term ‘phyllopodia’ refers to:
- A) Swimming appendages
- B) Leaf-like gills
- C) Feeding appendages
- D) Reproductive structures
Answer: B) Leaf-like gills
- Which subclass of Branchiopoda includes species known as “brine shrimp”?
- A) Anostraca
- B) Cladocera
- C) Notostraca
- D) Diplostraca
Answer: D) Diplostraca
- The primary function of the carapace in Branchiopoda is to:
- A) Aid in locomotion
- B) Protect internal organs
- C) Assist in feeding
- D) Facilitate respiration
Answer: B) Protect internal organs
- The eye structure of Branchiopoda is typically:
- A) Simple eyes
- B) Compound eyes
- C) Ocelli
- D) Both A and B
Answer: B) Compound eyes
- Which of the following Branchiopoda is known for its ability to thrive in highly saline environments?
- A) Daphnia
- B) Artemia
- C) Triops
- D) Moina
Answer: B) Artemia
- Branchiopods are an important food source for:
- A) Terrestrial mammals
- B) Fish and other aquatic animals
- C) Birds only
- D) Reptiles
Answer: B) Fish and other aquatic animals
- The body of a Branchiopod is divided into how many main sections?
- A) Two
- B) Three
- C) Four
- D) Five
Answer: B) Three
- Which type of reproduction is common in Branchiopoda?
- A) Asexual reproduction
- B) Sexual reproduction
- C) Both A and B
- D) Budding
Answer: C) Both A and B
- Which of the following is a primary feeding method for Cladocera?
- A) Filter feeding
- B) Predation
- C) Grazing
- D) Scavenging
Answer: A) Filter feeding
- What type of ecological roles do Branchiopoda primarily play?
- A) Predators
- B) Herbivores
- C) Primary consumers
- D) All of the above
Answer: C) Primary consumers
- The compound eyes of Branchiopoda are adapted for:
- A) Night vision
- B) Color detection
- C) Detecting motion
- D) All of the above
Answer: D) All of the above
- Which Branchiopod is known for having a very short lifespan?
- A) Daphnia
- B) Artemia
- C) Triops
- D) Both A and C
Answer: A) Daphnia
- The appendages of Branchiopoda are primarily used for:
- A) Swimming
- B) Feeding
- C) Respiration
- D) All of the above
Answer: D) All of the above
- Which subclass of Branchiopoda includes fairy shrimp?
- A) Anostraca
- B) Cladocera
- C) Notostraca
- D) Branchiura
Answer: A) Anostraca
- Which of the following is a distinguishing feature of the subclass Notostraca?
- A) They have a large carapace
- B) They possess large compound eyes
- C) They have a long, flattened body
- D) They have a single eye
Answer: C) They have a long, flattened body
- The body of Branchiopoda is primarily composed of:
- A) Soft tissue
- B) Calcified structures
- C) Chitinous exoskeleton
- D) Cartilage
Answer: C) Chitinous exoskeleton