Inflorescence in flowers The reproductive shoot-bearing group or cluster of flowers, that arrangement or specific pattern of flowers on the floral axis is called an inflorescence. The main axis of an inflorescence is called a peduncle. Inflorescence can be divided into the following types: Racemose Inflorescence Cymose Inflorescence Compound /mixed Read more…
Morphology of Leaf Introduction: Leaf A leaf (plural leaves) can be defined as a dorsoventrally flattened structure that arises from the node of the stem and bears a bud in its axil. The axillary bud later develops into a branch. They develop from shoot apical meristem and are arranged in Read more…
Stem- Morphology of flowering plants The Stem The stem is the ascending part of the axis bearing branches, leaves, flowers, and fruits. It develops from the plumule of the embryo of a germinating seed. The stem bears nodes and internodes. The stem is generally green in color when young and Read more…
Roots- Morphology of Flowering Plants The term Morphology is derived from Greek words: morphe– forms and logos– study Morphology is the branch of biological science that deals with the study of the form, size, shape, color, and external structure of organisms. In flowering plants is large diversity is found in Read more…
BIOGEOCHEMICAL CYCLES Introduction: The flow of energy is linear in ecosystems but its opposite nutrients go through a cyclical process. The nutrients are locked in the dead remains of organisms and come back into the soil by decomposers. The recycling of these nutrients is called the biogeochemical or nutrient cycle. Read more…
RAMSAR- Wetland Sites in India What is the RAMSAR Wetland Site? The Ramsar Site is a wetland site designated for international importance by the Ramsar Convention. Introduction of Ramsar Convention: Ramsar Convention (established in 1971 by UNESCO, and came into force in 1975) is an international treaty for the conservation Read more…
Phylum Chordata – Characteristics and Classification All chordates possess these 5 primary characteristics including a notochord, dorsal and hollow nerve cord, endostyle or thyroid, pharyngeal slits, and a post-anal tail. The name is Chordates because of their characteristic feature “notochord”, which plays a significant role in chordate structure and movement. Characteristics features of Chordates Read more…
Phylum Aschelminthes or Nemathelminthes (Greek; nema = thread; helmins = worm) The Roundworms In phylum Aschelminthes, the organisms are also called roundworms because the body is circular in cross-section. These organisms are endoparasites. They are cylindrical, unsegmented, and triploblastic animals. The roundworms are mostly parasitic and cause diseases in plants, Read more…
Phylum – Porifera – (Pore-bearing) Introduction: The porifers are commonly known as sponges. Porifers consisting the most primitive multicellular animals. These are pore-bearing animals, the body does not consist of organs and they can regenerate their lost parts. The phylum includes around 5ooo species. These are the first multicellular animals. Read more…
Animal kingdom – Classification The kingdom is the second-highest taxonomic rank below the domain. Under the kingdom Animalia, the multicellular, eukaryotic organisms with few exceptions are placed. Basis of Classification of Animal Kingdom Some common features are used as the basis of the classification of animals. These are common to Read more…
