How many pairs of metanephridia are present in leeches?

• A) 15-20
• B) 5-10
• C) 10-17
• D) Upto 30

The order of grasshoppers, is _____________.

• A) Lepidoptera
• B) Blattaria
• C) Siphonoptera
• D) Orthoptera

Insects that beat their wings less than ________ times per second.

• A) 50
• B) 150
• C) 200
• D) 100

A fleeing cockroach reaches about __________. (speed)

• A) 6 km/hour
• B) 5 km/hour
• C) 4 km/hour
• D) 2 km/hour

Relatively high body temperatures, perhaps ___________ are needed for flight muscles to contract rapidly enough for flight.

• A) 30° C or greater
• B) 45° C or greater
• C) 20° C or greater
• D) 40° C or greater

Which of the following is not a sensory structure in cray fish?

• A) Statocyst
• B) Simple eye
• C) Compound eye
• D) Siphon

Most insects have _______abdominal segments.

• A) 13 or 14
• B) 10 or 11
• C) 1 or 2
• D) 2 or 4

The function of cerci is ____________.

• A) Ingestion and Digestion of food
• B) Body movement
• C) Excretory role
• D) Copulation and sensory structure

In insects, respiratory surfaces form highly branched system of __________ lined tubes, called trachea.

• A) Chitin
• B) Protein
• C) Lipid
• D) Lignin

Indirect flight muscles are frequently called ___________.

• A) Upward flight muscles
• B) Synchronous flight muscles
• C) Fibrillar flight muscles
• D) Stretching flight muscles

Which of the following statement about class Cirripedia is false?

• A) Sessile
• B) Exclusively freshwater
• C) Mostly monoecious
• D) Highly modified as Adult

___________ were the first animals to fly.

• A) Bats
• B) Insects
• C) Flying squirrels
• D) Birds

Muscles that flex the legs ________ the exoskeleton.

• A) aid
• B) distort
• C) strengthen
• D) move

A single nerve impulse can result in approximately ______ cycles of the wing.

• A) 40
• B) 60
• C) 50
• D) 20

In Pauropoda, gaseous exchange and diffusion of nutrients occurs through _________________.

• A) Antenna
• B) Spinnerets
• C) Exoskeleton
• D) Each segment of trunk

In direct or synchronous flight mechanism muscles attaching dorsally and ventrally on the exoskeleton contract to produce _____________.

• A) Ventral Thrust
• B) Lateral Thrust
• C) Downward Thrust
• D) Upward Thrust

In terms of numbers of species and numbers of individuals, chelicerates are dwarfed in terrestrial environments by __________ arthropod lineage—the insects and their relative.

• A) Fourth
• B) First
• C) Third
• D) Second

Dorsoventral muscles pulling the dorsal exoskeleton (tergum) downward produce the ____________ wing thrust.

• A) Downward
• B) Sudden
• C) Straight
• D) Upward

Diplopods possess repugnatorial glands that produces _____to repel other animals.

• A) Carbon Sulphide
• B) Hydrogen Cyanide
• C) Nitric oxide
• D) Nitrogen Sulphate

The length of symphyla is about __________ mm.

• A) 2 to 8
• B) 2 to 10
• C) 3 to 12
• D) 3 to 9