183768
Which of the following statements are true with respect to the circulatory system of Periplaneta americana?
A. Heart consists of 13 chambers
B. Haemolymph brings oxygen from..... and tracheae and supplies to different orgAns:
C. Contraction of heart chambers causes the blood to flow into aorta and from there in to sinus' of head
D. Alary muscles facilitate the flow of blood through the heart.
183768
Which of the following statements are true with respect to the circulatory system of Periplaneta americana?
A. Heart consists of 13 chambers
B. Haemolymph brings oxygen from..... and tracheae and supplies to different orgAns:
C. Contraction of heart chambers causes the blood to flow into aorta and from there in to sinus' of head
D. Alary muscles facilitate the flow of blood through the heart.
183768
Which of the following statements are true with respect to the circulatory system of Periplaneta americana?
A. Heart consists of 13 chambers
B. Haemolymph brings oxygen from..... and tracheae and supplies to different orgAns:
C. Contraction of heart chambers causes the blood to flow into aorta and from there in to sinus' of head
D. Alary muscles facilitate the flow of blood through the heart.
183768
Which of the following statements are true with respect to the circulatory system of Periplaneta americana?
A. Heart consists of 13 chambers
B. Haemolymph brings oxygen from..... and tracheae and supplies to different orgAns:
C. Contraction of heart chambers causes the blood to flow into aorta and from there in to sinus' of head
D. Alary muscles facilitate the flow of blood through the heart.