How many ganglia lie in the thorax and abdomen respectively in cockroach?
A. 3, 6
B. 6, 3
C. 2, 4
D. 4, 2
Answer:A
How many ganglia lie in the thorax and abdomen respectively in cockroach?
A. 3, 6 B. 6, 3 C. 2, 4 D. 4, 2