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

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