Morphology and Anatomy of Cockroach

Which one of the following has an open circulatory system?

RBC do not occur in

The egg case in female cockroach is formed by secretion of:

Inspiration in cokroach is brought about by

In the given diagram of a leg of cockroach, parts have been indicated by alphabets. Select the answer in which these alphabets have been correctly matched with the parts which they indicate.

An organism is 80-120mm in length with a diameter of 3.5-5mm. These are included in the 

Pheromone is

Cockroach and earthworm have common type of

How many teeth are present is a cockroach's gizzard?

Cockroach belongs to the class:

In cockroach, some nitrogenous wastes are deposited on the cuticle and eliminated during which process?

Identify the mismatched pairs
A) Trophocytes-Symbiotic bacteria
B) Mycetocytes-Store food
C) Urate cells-Nitrogenous wastes
D) Oenocytes-Secrete lipids

Study the following regarding blood circulation in cockroach and identify I and II.

These cells of corpora adiposa of cockroach store food materials.

The following are the ganglia of the autonomous nervous system of Cockroach. Arrange them in the correct sequence.
I) Pre-ventricular ganglion
II) Frontal ganglion
III) Ingluvial ganglion
IV) Occipital ganglion

The sense organs present on the proximal parts of the tibia in Cockroach are sensitive to-

Statement $\mathbf{\left(}\mathbf{S}\mathbf{\right)}\mathbf{:}$ The image formed in nocturnal insects is called superposition image.

Reason $\mathbf{\left(}\mathbf{R}\mathbf{\right)}\mathbf{:}$ The superposition image is a clear image.

The principal muscles of respiration in cockroach are

In Periplaneta americana, there are three pairs of jointed walking legs, one pair attached to each thoracic segment on the ventral side. Each leg is made up of five segments or podomeres arranged serially. Identify the sequence of arrangement of podomeres from the base to the tip.

Which of the following statements are true with respect to the circulatory system of Periplaneta americana?
A Heart consists of $13$ chambers.
B. Haemolymph brings oxygen from tracheae and supplies to different organs.
C. Contraction of heart chambers causes the blood to flow into aorta and from there in to sinus of head.
D. Alary muscles facilitate the flow of blood through the heart.