Population genetics – Unitary and modular population, Hardy-Weinberg law

Population genetics - Unitary and modular population, Hardy-Weinberg law

Population genetics is a subfield of genetics that focuses on understanding how genetic variation is distributed across populations, and how these variations evolve over time. A population, in this context, refers to a group of individuals from the same species that occupy a specific geographic area and have the potential to interbreed. Unlike isolated groups, … Read more

Population Characteristics

Population Characteristics

Population, a term derived from the Latin word populus meaning “people,” refers to a group of organisms belonging to the same species that live in a specific geographical area and have the potential to interbreed. In ecological terms, a population is an assemblage of individuals of a species that occupy a particular space at a … Read more

Nematodes – Morphology, Classification, Examples

Nematodes - Morphology, Classification, Examples

What are Nematodes? Definition of Nematodes Nematodes are elongated, unsegmented, thread-like worms, found in various environments such as soil and water. They can be free-living or parasitic, affecting plants, animals, and humans. General Characteristics of Nematodes Nematodes, often referred to as roundworms, exhibit distinct morphological and physiological features that set them apart from other organisms. … Read more

Classification of Protozoa

Classification of Protozoa

Protozoa are defined as microscopic, acellular organisms that exist either singly or in colonies, characterized by a lack of tissues and organs and the presence of one or more nuclei. With approximately 50,000 known species within the Phylum Protozoa, these organisms exhibit a remarkable diversity and complexity despite their simple structure. Protozoa can be broadly … Read more

Protozoa – Definition, Classification, Characteristics, Structure, Locomotion, Examples

Protozoa Definition

What is Protozoa? Protozoa Definition Protozoa are a diverse group of single-celled eukaryotic organisms that can be either free-living or parasitic. They primarily feed on organic matter, including microorganisms and organic debris. Protozoa are characterized by their lack of a rigid cell wall, motility, and heterotrophic feeding habits. Examples include Amoeba, Paramecium, Euglena, and Trypanosoma. … Read more

Parasitic Vertebrates – Cookiecutter shark, Candiru, Hood Mockingbird and Vampire bat

Parasitic Vertebrates

What are Parasitic Vertebrates? Cookiecutter shark (Isistius brasiliensis) Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Chondrichthyes Subclass: Elasmobranchii Subdivision: Selachimorpha Order: Squaliformes Family: Dalatiidae Genus: Isistius Species: I. brasiliensis The cookiecutter shark (Isistius brasiliensis) is a distinctive species of deep-sea shark known for its unique feeding behavior and wide geographic range. Primarily found in tropical and … Read more

Cimex lectularius (Bed Bug) – Morphology, Life Cycle, Types, Control

Cimex lectularius - Morphology, Life Cycle, Types, Control

What is Cimex lectularius? Classification of Cimex lectularius scientific name: Cimex lectularius Linnaeus (Insecta: Hemiptera: Cimicidae) Classification Level Classification Name Kingdom Animalia (Animals) Phylum Arthropoda (Arthropods) Subphylum Hexapoda (Hexapods) Class Insecta (Insects) Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids, and Allies) Suborder Heteroptera (True Bugs) Infraorder Cimicomorpha Superfamily Cimicoidea Family Cimicidae (Bed Bugs) Subfamily Cimicinae … Read more

Xenopsylla cheopis – Morphology, Life cycle, Control

Xenopsylla cheopis - Morphology, Life cycle, Control

What is xenopsylla cheopis? Classification of xenopsylla cheopis Scientific Name:  Xenopsylla cheopis (Rothschild, 1903) Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Siphonaptera Family: Pulicidae Genus: Xenopsylla Habitat of xenopsylla cheopis Xenopsylla cheopis, commonly known as the Oriental rat flea, primarily inhabits tropical and subtropical environments, although it can also be found in temperate regions. This flea … Read more

Pediculus Humanus (Lice) – Morphology, Types, Life cycle, Management

head louse

What is Pediculus Humanus (Lice)? Lice are small, parasitic insects that belong to the order Phthiraptera and are known for their obligatory ectoparasitic lifestyle. Over 550 species of lice have been identified worldwide, and they typically infest humans, cattle, and other animals. These insects are dorsoventrally flattened and wingless, making them well-adapted to their parasitic … Read more

Ticks – Morphology, Types, Life Cycle and Examples

Ticks - Morphology, Types, Life Cycle and Exampless

What are Ticks? Definition of Ticks Ticks are small, parasitic arachnids belonging to the order Ixodida, feeding on the blood of mammals, birds, reptiles, and amphibians. They are classified into two main families: Ixodidae (hard ticks) and Argasidae (soft ticks). Ticks have a complex life cycle that includes four stages: egg, larva, nymph, and adult, … Read more

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