MCQ Bank
Which of the following is correct sequence of arachnid’s life cycle?
- A) Egg sac > Spiderling > Egg > Adult
- B) Egg > Egg sac > Spiderling > Adult
- C) There is no specific order
- D) Egg sac > Egg > Spiderling > Adult
Which of the following is not the part of gut of arachnids?
- A) Mid Gut
- B) Hind Gut
- C) Malpighian tubules
- D) Fore Gut
Which of the following is the primary excretory product of arachnids?
- A) Uric acid
- B) Ammonia
- C) Urea
- D) Guanine
The lens of spider eye is a thickened, transparent modification of the _______.
- A) Chitin
- B) Mouth
- C) Skin
- D) Cuticle
Respiratory water loss in arachnids is reduced by?
- A) Alveoli
- B) Tracheae
- C) Gill racks
- D) Bronchi
Arachnids are reproductively _______.
- A) Dioecious
- B) Hermaphrodite
- C) Monecious
- D) Protandrous
Displacement of the seta initiates a nerve impulse in _______associated with the base of the seta.
- A) Sensillum
- B) Chemoreceptor
- C) Serotinin
- D) Antennae
In copepods The first antennae and the thoracic appendages are modified for _____.
- A) Swimming
- B) Jumping
- C) Walking
- D) Running
Shrimps belong to which sub phylum of arthropods?
- A) Arachnids
- B) Chelicerata
- C) Cirripeda
- D) Crustacea
Respiratory water loss in arachnids is reduced by?
- A) Gill racks
- B) Bronchi
- C) Alveoli
- D) Tracheae
The midgut of digestive system of cray fish is often called ______.
- A) Hepatic caeca
- B) Gut
- C) Esophagus
- D) Intestine
Crustaceans have a planktonic, free-swimming larva called ________.
- A) Nymph
- B) Zoea
- C) Nauplius
- D) Tadpole
Which of following are elongated appendages of the male spiders?
- A) Proboscis
- B) Cypris
- C) Ovigers
- D) Zoea
In circulatory system of cray fish Branches of arteries empty into sinuses of the _______.
- A) Blastocoel
- B) Gastrovascular cavity
- C) Hemocoel
- D) Pseudocoel
Which of the following part of digestive system of cray fish involves in water and salt regulation?
- A) Foregut
- B) Anus
- C) Stomach
- D) Intestine
Which of the following statement is false about circulatory system of cray fish?
- A) Blood bathes the tissues directly
- B) Open circulatory system
- C) Cray fish blood contain respiratory pigment
- D) Blood vessels provide track of blood passage
Word Malacostraca literally means ________.
- A) Hard shelled
- B) Soft shelled
- C) Irregular shelled
- D) Porous shelled
Crustaceans possess biramous appendages, each of which consists of a basal segment, called _________.
- A) Mesopodite
- B) Protopodite
- C) Exopodite
- D) Endopodite
How many of excretory organs are present in arachnids?
- A) 2
- B) 4
- C) 1
- D) 3
What is the location of statocyst in cray fish?
- A) Base of antennae
- B) Mouth and Appendages
- C) Exoskeleton
- D) Tail