MCQ Bank
Book lungs are present in which class of phylum arthropoda?
- A) Merostomata
- B) Arachnida
- C) Cephalocarida
- D) Pycnogonida
In the earthworm ,expanded ______vessels surrounding the esophagus propel blood between dorsal and ventral blood vessels.
- A) Contracted
- B) Divided
- C) Relaxed
- D) Segmental
Oligochaetes use metanephridia for excretion and for ion and _______regulation.
- A) Water
- B) pH
- C) Chemical
- D) Solute
_____________ receptacles in oligochaetes receive sperm during copulation.
- A) Vas deferens
- B) Spermathical
- C) Seminal
- D) Epididymis
Subphylum of arthropods that is completely extinct is called _________.
- A) Chelcirata
- B) Crustacea
- C) Remipedia
- D) Trilobitomorpha
For protection of their soft ventral surface trilobites do?
- A) Division of body into three regions
- B) Formation of oval flattened body
- C) Formation of protective covering
- D) Articulation of all body segments
By reproduction, Leeches are ________.
- A) Protandrous
- B) Unisexual
- C) Dioecious
- D) Monoecious
The remnants of the old, empty exoskeleton are called _______.
- A) Ecdysozoa
- B) Exuviae
- C) Callow
- D) Teneral
In polychaetes a metanephridium consists of an open, ciliated funnel like structure called as _______.
- A) Nephridia
- B) Nephrostome
- C) Protonephridium
- D) Nephridiopore
Horseshoe crabs are reproductively _____________.
- A) Monoecious
- B) Dioecious
- C) Protandrous
- D) Hermaphrodite
In protostome blastopore develops from ________.
- A) Blastocoel
- B) Gastropore
- C) Blastopore
- D) Gastrocoel
Metamerism permits the specialization of regions of the body for specific functions. This regional specialization is called _______.
- A) Polymorphism
- B) Metamorphosis
- C) Ecdysis
- D) Tagmatization
_____________ glands regulate the level of calcium in oligochaetes.
- A) Calciferous
- B) Adrenal
- C) Mineral
- D) Renal
When new exoskeleton is formed, why arthropods are unable to move?
- A) New exoskeleton is soft
- B) New exoskeleton is hard
- C) Muscles are not functional
- D) Nervous system stops muscle contraction
Respiratory gases of most annelids simply diffuse across the body wall, and _______increase the surface area for these exchanges.
- A) Parapodia
- B) Cilia
- C) Setae
- D) Flagella
Ecdysis is derived from greek word ekdysis meaning __________.
- A) Change
- B) Put on
- C) Reshuffle
- D) Getting out
Oligochaete respiratory and circulatory functions are same as_________.
- A) Ceolentrata
- B) Polychaetes
- C) Rotifers
- D) Plathyhelminthes
Which of the following organism feeds on human blood?
- A) Leech
- B) Earthworm
- C) Neries
- D) Planaria
In exoskeleton of arthropods regions where the procuticle is thinner and less hardened is called ________.
- A) Sensilla
- B) Invaginations
- C) Articular membrane
- D) At jointed appendages
Leeches have __________ pairs of metanephridia, one per segment in the middle segments of the body.
- A) 10 to 20
- B) 10 to 17
- C) 10 to 15
- D) 10 to 12