Browse Reference Articles
111 to 120 of 895 articles
-
Immune system
The immune system is the system of specialized cells and organs that protect an organism from outside biological influences. (Though in a broad sense, almost every organ has a protective function - ... > more -
Caribbean Monk Seal
The Caribbean Monk Seal, the only seal ever known to be native to the Caribbean sea and the Gulf of Mexico, is now considered ... > more -
Garter snake
A garter snake, or garden snake, or gardner snake, is any species of North American snake within the genus Thamnophis. Garter snakes are extremely common across North America, from Canada to Central ... > more -
Speciation
Speciation refers to the evolutionary process by which new biological species arise. There are three main ideas concerning the emergence of new species (Modes of Speciation), each based on the degree ... > more -
Canada Goose
The Canada Goose (Branta canadensis), colloquially Greater Canada or Canadian Goose in North America, belongs to the Branta genus of geese, which contains species with largely black plumage, ... > more -
Hormone Disorders
Healthy Aging
Attention Deficit Disorder
Diseases and Conditions
Sports Medicine
Thyroid Disease
Endocrinology
Endocrinology is a branch of medicine dealing with disorders of the endocrine system and its specific secretions called hormones. Hormones are molecules that act as signals from one type of cells to ... > more -
Biological tissue
Biological tissue is a collection of interconnected cells that perform a similar function within an organism. The study of tissue is known as histology, or, in connection with disease, ... > more
Search ScienceDaily
Number of stories in archives: 137,376

