Practice free Classification of Animal Kingdom (Zoology) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
The sclerites in exoskeleton of cockroach are joined to each other by :
In cockroach, exoskeleton has hardened plates called sclerites that are joined to each other by a thin and flexible articular membrane called as arthrodial membrane.
The triangular head of cockroach is made by fusion of how many segments :
Head of cockroach is triangular in shape.. It is formed by the fusion of six segments and shows great mobility in all directions due to flexible neck.
Which mouth part of cockroach has grinding and incising part ?
Malpighian tubules of cockroach are lined by which of the following cells ?
Excretion in cockroach is performed by Malpighian tubules. Each tubule is lined by glandular and ciliated cells. They absorb nitrogenous waste products and convert them into uric acid which is excreted out through the hindgut.
Complete the following sentence by choosing the appropriate option:
Digestive juice in cockroach is secreted by a ring of blind tubules which are ______ in number.
A ring of 6-8 blind tubules called hepatic or gastric caecae is present at the junction of foregut and midgut, which secrete digestive juice.
Yellow coloured thin filamentous rings present at the junction of midgut and hindgut which help in excretion are how many in number ?
At the junction of midgut and hindgut, a ring of 100-150 yellow coloured thin filamentous- malpighian tubules is present. They help in removal of excretory products from haemolymph.
Find the mismatched pair :
Spermatheca receives sperms and stores them for fertilisation.
A characteristic mushroom shaped gland is present in the 6th-7th abdominal segments which functions as an accessory reproductive gland.
The Malpighian tubules of cockroach are lined by which among the following ?
Excretion is performed by Malpighian tubules. Each tubule is lined by glandular and ciliated cells.
Which among the following is not a sense organ of cockroach ?
In cockroach, the sense organs are antennae, eyes, maxillary palps, labial palps, anal cerci, etc. Unsegmented caudal styles are present in male cockroach only.
Complete the following statement by choosing the appropriate option:
The type of development in Periplaneta americana is ___________.
The development of P. americana is paurometabolous, meaning there is development through nymphal stage. The nymphs look very much like adults.
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