Phylum Mollusca: It is the second largest phylum in animal kingdom and consists of over 150,000 marine, freshwater and terrestrial species. Mollusca, the second largest animal phylum after Arthropoda, is a diverse group of soft-bodied invertebrates . They are found in almost all aquatic environments, from freshwater to the deepest parts of the ocean, as…
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Annelida: The phylum annelida was first coined by LAMARCK (1801) (Gr., annulus – little ring + eidos – form) for the higher segmented worms. There are around 16500 species included in the phylum Annelida. Appearence of metamerism represents their greatest Advancement, so they are called a Segmented worms. The unique characteristic of the phylum Annelida is metamerism….
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Aschelminthes: It also referred to as Nemathelminthes, it is an invertebrates phylum which includes roundworms. Defination: They are bilaterally symmetrical, triploblastic and pseudocoelomate animals with organ system of organization. Excretion involves a giant excretory cell called Renette cell. They have tube-within-tube type of body plan. Nemathelminthes group are created by Gwgenbaur in 1859 to place…
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Carbohydrates: The carbohydrates are a group of naturally occurring carbonyl compounds (aldehydes or ketones) that also contain several hydroxyl groups. Carbohydrate are the most abundant organic molecules in nature and also referred to as “saccharides”. The carbohydrates which are soluble in water and sweet in taste are called as “sugars”. Structure of Carbohydrates Carbohydrates consist…
Cell Organelles: Cells are the basic units of life and they are incredibly tiny. Most cells are microscopic and can only be seen with a microscope. Even though they are small, they are very complex and have many different parts, just like our bodies do. These parts are called organelles and each one has a…
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World Bee Day: It is celebrated on May 20th of each year. It’s a day to raise awareness about the important role bees and other pollinators play in keeping our planet healthy. Pollinators like bees help plants reproduce by carrying pollen from flower to flower. This helps produce the fruits, vegetables, and nuts that we…
Phylum Platyhelminthes: The phylum platyhelminthes, also known as flatworms, is a incredibly diverse group of invertebrate animals. With over 20,000 known species, but due to their small size and often cryptic lifestyles, the actual number of species is likely much higher. mostly parasites that live in other animals including man. Flatworms are found in a…
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