Bombyx mori: External Morphology and Life Cycle
External Morphology of Bombyx mori The adult moth of Bombyx mori L. is about 25.00 mm long with …
Zoology
Mammalian Circulatory System
Arteries The arteries are efferent vessels that take blood to the capillary beds away from the nucleus. Both …
Submandibular & Sublingual Gland
Salivary Gland In the submandibular area or the floor of the mouth, two of the three main salivary …
Fish Buoyancy
Fish Buoyancy Principle If a swimming animal is heavier than water, part of its energy is expended in …
Reproduction,Gametogenesis And Fertilization
Reproduction,Gametogenesis And Fertilization ▶Asexual Reproduction In asexual reproduction the parent divides, fragments or buds to give rise to …
Metamorphosis
Metamorphosis It is the transformation from one to another morphological and physiological form of an animal during its …
Theories Of Aging
Theories Of Aging ▶Nature versus Nurture Theories of aging can be divided into those implying a genetic program …
Aging and Senescence
Aging and Senescence Lifespans, even of closely related species (e.g. mammals), can be very varied: for example a …
Puberty In Humans
Puberty In Humans ▶Puberty onset Puberty is a period of rapid body growth and development. accompanied by the …
The Menstrual Cycle In Women
The Menstrual Cycle In Women ▶Pre-ovulation After puberty in women, the menstrual (monthly) cycle is established. The production …
Mid-Life And Menopause In Humans
Mid-Life And Menopause In Humans ▶Mid-life Mid-life spans the years between puberty and old age (senescence). In men, …