EASY
Earn 100

Wings are vestigial in which type of cockroaches?

50% studentsanswered this correctly

Important Questions on Invertebrate Phyla

EASY

Study the following and find the correct combinations related to Arthropoda

Subphylum / Class Character Example
(i) Arachnida (a) Extinct marine arthropods (p) Julus
(ii) Crustacea (b) Gnathochilarium (q) Dalmanites
(iii) Chilopoda (c) Poison claws (r) Araneae
(iv) Diplopoda (d) Biramous thoracic and abdominal appendages (s) Scolopendra
(v) Trilobita (e) Spinnerets (t) Cancer

 

EASY
Exoskeleton of arthropods is composed of:
EASY
Study the following statements about crustaceans and identify the wrong one ?
MEDIUM

Study the following statements
A) Corallium rubrum is the precious red stone coral that belongs to Scyphozoa
B) Renette gland is an excretory gland found in round worms
C) Tubifex is an aquatic annelid
D) In chilopods, maxillae are modified into gnathochilarium

Among the above, the incorrect statements are

EASY
Which of the following characteristics is mainly responsible for the diversification of insects on land?
EASY
Which of the following features is not present in the phylum Arthropoda?
MEDIUM
Study the following and pick up the correct statements:
I) Aristotle's lantern is found in echinoids
II) Glochidium is the larva of cephalopods
III) Scorpions respire with book lungs.
IV) Parapodia are found in oligochaetes
MEDIUM

Match the following

   List - I     List - II
(a) Crab (i) Green glands
(b) Dugesia (ii) Malpighian tubules
(c) Wuchereria (iii) Renette glands
(d) Scolopendra (iv) Flame cells

The correct answer is

MEDIUM

Match the following columns and select the correct option.

  Column-I   Column-II
(a) Gregarious, polyphagous pest (i) Asterias
(b) Adult with radial symmetry and larva with bilateral symmetry (ii) Scorpion
(c) Book lungs (iii) Ctenoplana
(d) Bioluminescence (iv) Locusta
EASY
The chitinous exoskeleton of arthropods is formed by the polymerization of:
MEDIUM
Study the following and pick up the correct statements.
I. Contraction of the dorsal longitudinal muscles elevates the wings in the cockroach.
II. Rectal papillae help in water conservation in cockroaches.
III. The second chamber of the heart from the anterior part lies in the metathorax of the cockroach.
IV. Inner cuticular lining of the trachea of the cockroach is called the intima.
HARD
Consider the following four statements (i)-(iv) and select the correct option stating which ones are true (T) and which ones are false (F) .
(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum.
(ii) In cockroaches, the haemolymph is composed of colourless plasma and haemocytes.
(iii) In a female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova.
(iv) In cockroach the nymph grows by moulting about 13 times to reach the adult form.
  A B C D
(i) F T F T
(ii) F F T T
(iii) T T F T
(iv) T F T F
MEDIUM
The terga, sterna and pleura of cockroach body are joined by:
EASY
An animal that feeds upon organic matter, dead insects and own cast-off cuticle could be classified as which of the following?
EASY
Select the correct statement from the ones given below with respect to Periplaneta americana.
EASY
The zoological name of cockroach is
EASY
Which are the two common Indian cockroaches?
EASY
The egg case in female cockroach is formed by secretion of: