Question

Which of the following is INCORRECT about a cockroach?

• A. In females, a pair of spermatheca is present in the 6^th segment which opens into the genital chamber.
• B. Male genital pouch is present dorsal to anus and contain male genital pore and gonapophysis.
• C. The heart is differentiated into funnel shaped chambers with ostia on either side.
• D. Blood vascular system is open type in which blood from sinuses enter heart through ostia and pumped anteriorly.

Answer 1

Answer: (B)

Cockroaches are brown/black bodied animals from class Insecta of Phylum Arthropoda. They have well-developed reproductive organs in both sexes. Male reproductive system consists of a pair of testes on each lateral side. From each testis arises a thin vas deferens, which opens into ejaculatory duct through seminal vesicle that opens into male gonopore situated ventral to anus. The genetelia are external and represented by male gonapophysis.