54 results found

Search Results for: mark

Marker

Definition noun, plural: markers (general) Anything that marks or is used to mark, e.g. a location. (genetics) A gene or DNA... Read More

coronavirus COVID-19

Coronavirus Disease 2019 (COVID-19) Coronavirus Disease 2019 (COVID-19) is a contagious coronavirus disease first detected... Read More

Scar

scar To mark with a scar or scars. Yet I'll not shed her blood; Nor scar that whiter skin of hers than snow. (Shak) His... Read More

Kingdom

Kingdom is a taxonomic rank used in biological classification systems to simplify the understanding of the biological world.... Read More

Reproduction

Reproduction Definition Reproduction is a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending... Read More

Breathing

Breathing 1. Respiration; the act of inhaling and exhaling air. Subject to a difficulty of breathing. (Melmoth) 2. Air in... Read More

Vestige

A vestige, in biology, refers to the vestigial structures. Etymologically, the term came from the Latin vestīgium, meaning... Read More

Characteristic

Characteristics Definition We can define characteristics as qualities or features that describe the distinctive nature or... Read More

Immunoglobulin

Immunoglobulin Definition An immunoglobulin is a globulin molecule produced by the immune cells, for the body's defense... Read More

Urination

Definition noun The process of voiding urine from the body to the outside Supplement Urination is the process whereby urine... Read More

Marrow

Marrow 1. (Science: anatomy) The tissue which fills the cavities of most bones; the medulla. In the larger cavities it is... Read More

Metamerism

Metamerism Definition Metamerism is the repetition of homologous body segments. This type of development can be seen in the... Read More

Navel

navel 1. (Science: anatomy) A mark or depression in the middle of the abdomen; the umbilicus. See Umbilicus. 2. The central... Read More

Rhizome

The rhizome is derived from the Greek word rhizoma, meaning "a bunch of roots". Usually, rhizomes are confused with roots;... Read More

Hydrophobic

Hydrophobic Definition The fear of mixing or reacting with water under a given set of reaction parameters is often referred... Read More

Positive feedback

Positive Feedback Definition Each mechanism of the body like temperature, blood pressure, and levels of specific nutrients... Read More

Pheromone

Pheromone Definition A pheromone is a chemical released by an organism and serves as a behavior-modifying agent. It means... Read More

Biochemistry

Definition noun The study of the structure and function of cellular components, such as proteins, carbohydrates, lipids,... Read More

Hilum

Definition noun, plural: hila (botany) The scar on a seed or a spore at the site where it was attached to its stalk during... Read More

Darwinian fitness

Darwinian Fitness Definition Darwinian fitness refers to the measure of an individual organism's or genotype's reproductive... Read More

Microtubule-associated protein

Definition noun, plural: microtubule-associated proteins Any of the proteins bound to the tubulin subunits of the... Read More

Fibrinous exudate

What Is Fibrinous Exudate? Fibrinous exudate is a type of exudate (inflammatory fluid) that forms at the site of tissue... Read More

Sexual dimorphism

Sexual Dimorphism Definition Sexual dimorphism refers to the morphological differences (in form or appearance) between... Read More

Telophase II

Definition noun The stage in meiosis II after anaphase II, and identified by the complete movement and separation of the... Read More

Stems

External Form of a Woody Twig A woody twig, or stem, is an axis with leaves attached. The leaves are arranged in various... Read More

Growth and Plant Hormones

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

Early Mammals on Earth

By the time the dinosaurs were extinct 65 million years ago, the world's landmass had split up into more or less the... Read More

SELFISH GENE – selfish to persist

What is a selfish gene? A selfish gene is not a gene that makes an individual selfish. In fact, it may even be involved in... Read More

Extracellular matrix

Definition noun, plural: extracellular matrices The non-cellular portion of a tissue produced and secreted by cells and... Read More

Scallop

scallop 1. (Science: zoology) Any one of numerous species of marine bivalve mollusks of the genus pecten and allied genera... Read More

Prescription

prescription (Science: pharmacology) A written direction for the preparation and administration of a remedy. A prescription... Read More

Bell

Bell 1. a hollow metallic vessel, usually shaped somewhat like a cup with a flaring mouth, containing a clapper or tongue,... Read More

Eye

Definition noun, plural: eyes (1) The organ of sight or vision; the visual sense; the sense of seeing. (2) A mark... Read More

Spot

spot 1. A mark on a substance or body made by foreign matter; a blot; a place discoloured. Out, damned spot! Out, I say!... Read More

Mother

mother 1. A female parent; especially, one of the human race; a woman who has borne a child. 2. That which has produced or... Read More

Feathers

Feather 1. (Science: ornithology) One of the peculiar dermal appendages, of several kinds, belonging to birds, as contour... Read More

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Mitosis

Mitosis Definition What is mitosis? In biology, mitosis refers to the cellular process where a single cell divides... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Doctrine

Doctrine 1. Teaching; instruction. He taught them many things by parables, and said unto them in his doctrine, Hearken.... Read More