The blood vascular system of Pheretima is of closed type. It consists of the blood vessels, hearts, loops, capillaries and the blood glands. Blood: The blood of Pheretima is red coloured due to the presence of a respiratory pigment haemoglobin in it. The haemoglobin is not contained in the corpuscles like the vertebrates but it is found dissolved in the [...]
In this article we will discuss about Hirudinaria Granulosa:- 1. Habit and Habitat of Hirudinaria Granulosa 2. External Features of Hirudinaria Granulosa 3. Body Wall 4. Locomotion 5. Digestive System 6. Coelom 7. Hemocoelomic System 8. Respiratory System 9. Excretory System 10. Nervous System 11. Sense Organs 12. Reproductive System 13. Copulation and Fertilisation and Others. Contents: Habit and Habitat [...]
Apis (Honeybee) is a social insect living in colonies of 50,000 or more individuals. Honeybees are mostly vegetable feeders preferably living on pollen and nectar of flowers. The larvae which have no legs are helpless and are fed by the nursing workers of the colony up to their pupation time. The adults chiefly live upon honey, while the young ones [...]