MCQ Bank
Malpighian tubules are located at juncture between ______ & _______.
- A) Midgut and foregut
- B) Midgut and hindgut
- C) Hindgut and Anus
- D) Foregut and midgut
Tubule systems, called tracheae in arachnids open to the outside through openings called __________.
- A) spiracles
- B) ostia
- C) book lungs
- D) osculum
Which of the following is not the characteristic of coxal gland of arachnids?
- A) Single
- B) Spherical sacs
- C) Bath in blood of body sinuses
- D) Thin walled
Which of the following statement is false about circulatory system of cray fish?
- A) Blood bathes the tissues directly
- B) Blood vessels provide track of blood passage
- C) Open circulatory system
- D) Cray fish blood contain respiratory pigment
Which of the following statement is false about reproductive system of arachnids except spiders?
- A) Sperm packaging in spermetaphore in male
- B) Sperms transfer is usually direct
- C) Dioecious
- D) Paired genital openings are on the ventral side
My nutrition, most arachnids are ________.
- A) Omnivores
- B) Carnivores
- C) Decomposers
- D) Herbivores
The lense system of compound eye consists of of 25 to 14,000 individual receptors called ______.
- A) Ommatidia
- B) Sensillum
- C) Statocyst
- D) Ocelli
Arachnids are reproductively _______.
- A) Monecious
- B) Dioecious
- C) Hermaphrodite
- D) Protandrous
The part of foregut of crayfish involved in grinding of food _____.
- A) Mandibles
- B) Stomach
- C) Teeth
- D) Hepatic caeca
Which of the following structures are involved in osmoregulation?
- A) Cephalothorax
- B) Tail
- C) Gill surfaces
- D) Mouth
Branchales of subphylum Crustacea are ___________.
- A) Dioecious
- B) Unixexual
- C) Monoecious
- D) Protandrous
Structures whose form is based on a common ancestral pattern and that have similar development in the segments of an animal, are said to be ________.
- A) Analogous
- B) Homologous
- C) Concentric
- D) Vestigial
Book gills are present in ____________.
- A) Annelids
- B) Trilobitomorpha
- C) Merostomata
- D) Cirripedia
A seta is a hair like modification of the _______ set in a membranous socket.
- A) Cuticle
- B) Chitin
- C) Skin
- D) Mouth
Which of the following is considered as modification of book gills?
- A) Body surface
- B) Spiracles
- C) Eustachian Tubule
- D) Book lungs
Androgenic hormones in cray fish promote the development of _________.
- A) Testes
- B) Female secondary characteristics
- C) Egg and sperm
- D) Ovary
Which of the following part of digestive system of cray fish involves in water and salt regulation?
- A) Stomach
- B) Foregut
- C) Intestine
- D) Anus
In arachnids embryos lay on the forest floor until the pond fills again the following spring, at which time they hatch into ____ larvae.
- A) Nauplius
- B) Trochophore
- C) Chiton
- D) Nymph
Shrimps belong to which sub phylum of arthropods?
- A) Crustacea
- B) Cirripeda
- C) Chelicerata
- D) Arachnids
Tubular system of book lungs is called ________.
- A) Bronchi
- B) Alveoli
- C) Tracheae
- D) Gill racks