MCQ Bank
Arachnids use __________ for excreting nitrogenous wastes
- A) metanephridia
- B) salivary glands
- C) coxal glands
- D) adrenal glands
Branchales of subphylum Crustacea are ___________.
- A) Monoecious
- B) Unixexual
- C) Dioecious
- D) Protandrous
The only extant order of class Phyllocarida is ______.
- A) Aeschronectida
- B) Hoplostraca
- C) Leptostraca
- D) Archaeostraca
Members of the order Cladocera are called _______.
- A) Water fleas
- B) Common fleas
- C) Fire fleas
- D) Terrestrial fleas
The nervous system of all arthropods is________ except scorpions.
- A) Central
- B) Ventral
- C) Anterior
- D) Dorsal
Very small aquatic crustaceans exchange gases through ________.
- A) Book lungs
- B) Integument
- C) Gills
- D) Lungs
Some sea spiders feed by sucking prey tissues through ______.
- A) Antennae
- B) Proboscis
- C) Thoracic Appendages
- D) Tentacles
Androgenic glands in cray fish are present in ________.
- A) Prominent in male but also present in female naturally
- B) Prominent in female but also present in male naturally
- C) Females only
- D) Males only
Oligochaetes are ____________ and feed primarily on fallen and decaying vegetation, which they drag into their burrows at night.
- A) Decomposers
- B) Omnivorous
- C) Herbivorous
- D) Scavengers
Crabs belong to which class of phylum arthropoda?
- A) Copepoda
- B) Malacostraca
- C) Arachnida
- D) Branchiopoda
Name the phenomena in which sperm is transferred by expelling a spermatophore from one leech into the integument of another.
- A) sexual reproduction
- B) hypodermic impregnation
- C) copulation
- D) excretion
Outermost layer of exoskeleton is called _________.
- A) Epicuticle
- B) Exocuticle
- C) Precuticle
- D) Endocuticle
Animals living in ________ darkness often do not have well-developed eyes.
- A) Transitory
- B) Nocturnal
- C) Diurnal
- D) Perpetual
The Class Hirudinea contains ____________.
- A) Flukes
- B) Earthworms
- C) Pin worms
- D) Leeches
In oligochaetes, _______________receives sperm during copulation.
- A) Seminal receptacles
- B) Ovisacs
- C) Oviducts
- D) Seminal vesicle
Salivary glands in Hirudinea secrete an anticoagulant called ______ that prevents blood from clotting.
- A) Warfarin
- B) Hirudin
- C) Edoxaban
- D) Heparin
Which of the following statement is false about reproduction in Hirudinea?
- A) Regeneration is absent
- B) All members reproduce sexually
- C) Clitellum is totally absent
- D) Reproductive organs are testis and ovary
In leeches excretion takes place through _______.
- A) Surface
- B) Protonephridia
- C) Metanehridia
- D) Kidney
Eurypterida are the _______________.
- A) giant spiders
- B) giant water scorpions
- C) horse shoe crabs
- D) giant crabs
Which of the following is not a stage of metamorphosis?
- A) Meiosis in Germline cells
- B) Larva
- C) Adult
- D) Egg