Dr. Laxmi Neupane 
Reproductive system of earthworm Earthworms do not reproduce asexually. Reproductive organs are somewhat complicated. The pheretima is monoecious or hermaphrodites having both male and female reproductive organs in the same … Read more
Nutrition of Amoeba proteus Food and selection of food Amoeba is carnivorous. It feeds by phagocytosis. The mode of nutrition is Zootrophic or holozoic. i.e. it requires ready-made (solid form) … Read more
Classification of Amoeba proteus Phylum: Protozoa Subphylum: sacromastigophora Superclass: Sarcodina Class: Rhizopodea Subclass: Lobosia Order: Amoebida Genus: Amoeba Species: proteus Habit and Habitat of Amoeba proteus Amoeba proteus is widely … Read more
Paramecium reproduces asexually by transverse binary fission and also undergoes several types of nuclear reorganization, such as conjugation, endomixis, autogamy, cytogamy, and hemixis, etc. 1. Transverse binary fission (Asexual reproduction) … Read more
1. Food Paramecium feeds in a holozoic manner, like an amoeba. The food comprises chiefly bacteria and minute protozoa which floats in the water in which it lives. It also … Read more
The excretory organs are segmentally arranged, microscopic, coiled tubules called nephridia. Nephridia are ectodermal in origin. These are typically unbranched, and their inner ends open into coelom by a ciliated … Read more
Circulatory system of earthworm The circulatory or blood vascular system of an earthworm is a closed type. It consists of the blood vessel, heart, capillaries, and blood glands. Blood is … Read more
Habit and Habitat of Earthworm The Earthworms are burrowers. It prefers to live in the burrow during the day and comes out at night and in damp cloudy weather for … Read more
Well developed and concentrated nervous system. Consists of 3 parts: the central, peripheral, and sympathetic nervous system. Figure: Nervous System of Earthworm. Image Source: Meridian Technical Charter High School. 1. … Read more
Earthworms are simple, commonplace creatures are of greater economic value to human beings in different ways. Our earth would be a far different place without them. They have both useful … Read more
