Which of the following statement(s) is/are correct regarding cockroaches?
$(i)$ The body of the cockroach is segmented and divisible into three distinct regions - head, thorax and abdomen.
$(ii)$ Blood vascular system is of closed type.
$(iii)$ They are monoecious and both seves have well developed reproductive organs.
$(iv)$ The development of P. americana is paurometabolus, meaning there is development through nymphal stage.
Which of the following statement(s) is/are correct regarding cockroaches?
$(i)$ The body of the cockroach is segmented and divisible into three distinct regions - head, thorax and abdomen.
$(ii)$ Blood vascular system is of closed type.
$(iii)$ They are monoecious and both seves have well developed reproductive organs.
$(iv)$ The development of P. americana is paurometabolus, meaning there is development through nymphal stage.
- A
Both $(i)$ and $(ii)$
- B
Both $(ii)$ and $(iii)$
- C
Both $(i)$ and $(iv)$
- D
All of these
Similar Questions
Complete the following statement :
$(a)$ In cockroach grinding of food particle is performed by ........ .
$(b)$ Malpighian tubules help in removal of ........ .
$(c)$ Hind gut of cockroach is differentiated into ........ .
$(d)$ In cockroach blood vessels open into spaces called ........ .
Complete the following statement :
$(a)$ In cockroach grinding of food particle is performed by ........ .
$(b)$ Malpighian tubules help in removal of ........ .
$(c)$ Hind gut of cockroach is differentiated into ........ .
$(d)$ In cockroach blood vessels open into spaces called ........ .
Which of the following statement(s) is/are correct about nervous system of cockroach ?
($i$) It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
($ii$) There are six ganglia lie in the thorax, and three in the abdomen.
($iii$) The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
($iv$) Each eye consists of about $5000$ hexagonal ommatidia.
Which of the following statement(s) is/are correct about nervous system of cockroach ?
($i$) It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
($ii$) There are six ganglia lie in the thorax, and three in the abdomen.
($iii$) The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
($iv$) Each eye consists of about $5000$ hexagonal ommatidia.
Which of the following have "ommatidia" as unit of eye
Arthrodial membrane is present in..
Arthrodial membrane is present in..
Which accessory digestive gland found in cockroach?
Which accessory digestive gland found in cockroach?