circulatory system- double circulation

Differentiate between (a) Open circulatory system and closed circulatory system. (b) Oviparous and viviparous characteristic. (c ) Direct development and Indirect development.

In circulatory system, valves occur in

Give differences between the following: Pulmonary circulation and systemic circulation

The open circulatory system is found in

The given figure is of circulatory system. Identify the labelled parts (A-D) from the list (i-vii). (i) Pulmonary circulation (ii) Systemic circulation (iii) Superior vena cava (iv) Inferior vena cava (v) Aorta (vi) Veins and venules (vii) Arterioles and capillaries

Open circulatory system occurs in

Mention briefly about the circulatory system of earthworm

The circulatory system of cockroach

Circulatory system does not help in

A closed circulatory system is found in :