Pakistan latest Mcqs with Answers
By Saleem Sono / In Biology Mcqs / November 17, 2018
A. Photorespiration B. Calvin cycle C. Both of these D. None of these
When abdomen expands, the number of spiracles open is_____________? A. 2 B. 3 C. 6 D. 8
Number of spiracles present in the thorax of cockroach is___________? A. 2 B. 3 C. 5 D. 4