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Articles by Projjol

Adaptation: Xerophytes, Mesophytes and Hydrophytes

Adaptation: Xerophytes, Mesophytes and Hydrophytes

May 19, 2023 Projjol 0

Adaptation In biology the term ‘adaptation’ refers to the modification oralteration in the general morphological and physiological characteristics of living organisms with respect to the […]

General characteristics and classification of gymnosperms with example

Gymnosperms: General characteristics and classification with example

May 17, 2023 Projjol 0

General Characteristics of gymnosperms 1. Gymnosperms have true roots. 2. Their stems are aerial. 3. Their carpels are not distinguished into stigma, style and ovary. […]

Cell wall: General characteristics, structure and function | Definition of Plasmolysis

Cell wall: General characteristics, structure and function | Definition of Plasmolysis

May 7, 2023 Projjol 0

Characteristics of cell wall NOTE: Animal cells does not have a cell wall around the plasma membrane of their cell. Functions of cell wall Characteristics […]

Introduction, General characteristics and classification of phylum Mollusca/Molluscs with examples

Mollusca: Introduction, General characteristics and classification of phylum with examples

April 24, 2023 Projjol 0

Introduction on Mollusca Mollusca is the second most largest phylum of animal kingdom having over 100,000 species. Many animals that are very well known, such […]

General characteristics and classification of phylum annelida with examples

General characteristics and classification of phylum annelida with examples 

April 17, 2023 Projjol 0

General Characters of Phylum Annelida:- 1. Annelida are mostly aquatic inhabitant and some are terrestrial. 2. They are bilaterally symmetrical and triploblastic organism. 3. They […]

Kidney | Mechanism of urine formation in mammals

Kidney | Mechanism of urine formation in mammals

April 5, 2023 Projjol 0

Why kidney is considered as an excretory organ? Kidneys is considered as the excretory organ because of its important role in the process of urine […]

General characteristics of mammalian skull and difference between herbivore and carnivore skull

General characteristics of mammalian skull and difference between herbivore and carnivore skull

April 3, 2023 Projjol 0

Characteristic features of mammalian skull is discussed below: 1) The mammalian skull is mainly composed of two parts: cranium and mandible. 2) The skull is made […]

Transpiration: Definition and significance | factors affecting transpiration

Transpiration: Definition and significance | factors affecting transpiration

March 25, 2023 Projjol 0

Transpiration The process of movement of water molecules through plant and its evaporation (or loss) from aerial parts of the plant (such as leaves) is […]

Energy flow in an ecosystem | Ecological pyramid

Energy flow in an ecosystem | Ecological pyramid

March 23, 2023 Projjol 0

Ecosystem:  An ecosystem is a group of many communities and different abiotic factors which influence that community. At this level of ecology, ecologists usually focus on flow […]

Importance and examples of eology | Biotic and Abiotic factors | Levels of ecology

Ecology: Importance and Examples | Biotic and Abiotic factors | Levels of ecology

March 23, 2023 Projjol 0

Ecology  Ecology is the branch of science which deals with the study of the relationship or interaction between different living organisms and their environment. Here […]

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