What is incorrect regarding Periplaneta americana?
1. Excretion by malpighian tubules
2. Hemolymph delivering oxygen to tissues
3. Paurometabolous development
4. Mosaic vision
Which among the following statements are incorrect about cockroach?
(1) Haemocytes lack respiratory pigment.
(2) Has 13 chambered heart on the ventral side of the body.
(3) Blood from sinuses enter heart through ostia.
(4) Has 10 pairs of spiracles present on lateral side of body.
Complete the following statement:
Heart of cockroach consists of elongated muscular tube lying along _________ of thorax and abdomen.
(1) Ventral line
(2) Mid dorsal line
(3) Lateral line
(4) Mid ventral line
Blood vascular system of cockroach is
(1) Open type
(2) Haemocoel is present
(3) Haemolymph bathes the visceral organs
(4) All are correct
Choose the incorrect option from the following-
Heart of cockroach
(1) Has elongated muscular tube
(2) Lying along mid ventral line of thorax and abdomen
(3) Has closed funnel shaped chambers with ostia on either side
(4) All the above
Frogs differ from humans in possessing
1. paired cerebral hemispheres
2. hepatic portal system
3. nucleated red blood cells
4. thyroid as well as parathyroid
Haemolymph in cockroach is devoid of
1. Plasma
2. Haemocytes
3. Amino acids
4. Respiratory pigment
The heart receives blood from the sinuses through
1. Haemocoel
2. Alary muscles
3. Ostia
4. Aorta
Alary muscles play an important role in
1. Circulation of blood
2. Respiration
3. Body movement
4. Peristalsis
I. the entire foregut is lined by cuticle
II. haemolymph is composed of colourless plasma and haemocytes
III. opening of spiracles is regulated by the sphincters
IV. fat body, nephrocyte and urecose glands help in excretion
1. Only I and II are correct
2. Only II, III and IV are correct
3. Only II and III are correct
4. I, II, III and IV are correct
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