44 results found

Search Results for: ears

Ear

Ear 1. The organ of hearing; the external ear. in man and the higher vertebrates, the organ of hearing is very complicated,... Read More

Y-linked inheritance

Definition noun (genetics) Inheritance for genes on the Y chromosome Supplement Sex chromosomes are not only relevant... Read More

Syndrome

Definition Of Syndrome A syndrome is a collection of signs, symptoms, series of events, and/or characteristics that occur... Read More

New Zealand’s Unique Fauna

By: Maria Victoria Gonzaga In the previous lesson, we learned about the high biodiversity of New Zealand and how... Read More

Integumentary system

Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More

Y-linked gene

Definition noun, plural: Y-linked genes A gene located on the Y chromosome Supplement Y chromosome is the male chromosome of... Read More

Woolly cheetah

Woolly cheetahs were reported in the 19th century as a separate species of cheetah that had longer, denser fur. Several... Read More

Elastic cartilage

The cartilage is a connective tissue characterized by having an extracellular matrix that is abundant in chondroitin sulfate... Read More

Autosome

Autosomes can be described as the non-sex chromosomes that play diverse roles in the human body like harboring genes for the... Read More

Purulent

The term "purulent" signifies the state of formation and release of pus from a site of inflammation. Thick, foul-smelling,... Read More

Sensory Systems

A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal and... Read More

The Conscious & Unconscious Nervous System

The Central Nervous System is arguably the most important part of the body because of the way it controls the biological... Read More

Growth and Development of a Human Baby

Continued from the initial human reproduction of the previous page in this tutorial. Upon arrival in the uterus, the... Read More

Crocodile

Definition noun, plural: crocodiles Any of the amphibious reptile species of the subfamily Crocodylinae Supplement The... Read More

Sagittal plane

The sagittal plane is the plane that allows us to see the world in bilateral symmetry. Whether reaching for a high shelf,... Read More

Patau syndrome

Definition noun A genetic disorder caused by genetic changes in chromosome 13, such as an extra copy of chromosome 13... Read More

Cilium

Cilia Definition Cilia are hair-like structures found on the surface of many types of cells, including some mammalian... Read More

Hyenas

Hyena Origin: L. Hyaena, gr, orig, a sow, but usually, a Libyan wild beast, prob, the hyena, fr. Hog: cf. F. Hyene. See sow... Read More

Hyaline cartilage

Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Smooth endoplasmic reticulum

Smooth Endoplasmic Reticulum Definition Smooth endoplasmic reticulum (sER) is part of or a region in the endoplasmic... Read More

Fetus

The science of Embryology and Fetal development has fascinated mankind since time immemorial. After the embryonic stage, the... Read More

Selective Breeding

Reviewed by: Mary Anne Clark, PhD Thousands of years before Darwin proposed evolution by natural selection and... Read More

giant panda

Giant Panda Definition The giant panda (Ailuropoda melanoleuca) is a bear species that has a round head, a stocky body with... Read More

Genetic Mutations

Reviewed by: Mary Anne Clark, Ph.D. Genetic Mutations Genetic mutations are inherited variations in an... Read More

Sex linkage

Definition noun, plural: sex linkages A condition in which a trait or a phenotype manifesting apparently more frequently in... Read More

The Fungi

The Fungi What are the Fungi? The Fungi are the great saprophytes, the master recyclers.  They are the black rot, the... Read More

Opuntia

Definition noun (botany) A genus of cactaceous plants belonging to the family Cactaceae, such as the prickly pear, Indian... Read More

Features

Features The various parts of the face, forehead, eyes, nose, mouth, chin, cheeks, and ears, that give to it its... Read More

Plant

Plant Definition (botany) Any of the eukaryotic organisms of the biological kingdom Plantae, characterized by being... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Ass

Ass 1. (Science: zoology) a quadruped of the genus equus (E. Asinus), smaller than the horse, and having a peculiarly harsh... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Felis

Definition noun (taxonomy) A genus of the family Felidae and includes domestic cat, sand cat, black-footed cat, wildcat,... Read More

Tuko-tuko

tuko-tuko (Science: zoology) A burrowing south American rodent (Ctenomys Braziliensis). It has small eyes and ears and a... Read More

Mole

Definition noun, plural: moles (chemistry) (1) The SI unit of amount of substance of a chemical system that contains as many... Read More

Crown of head

Crown of Head Definition The crown of the head is the upper dorsal part (or area) of the head. Several creatures have... Read More

Lanugo

What is Lanugo? Lanugo is the delicate and downy hair that covers a fetus within the uterus (womb). It is very fine hair.... Read More