webbed penis deficient ventral penile shaft skin which is buried in scrotum or tethered to scrotal midline by a fold or web of skin. The urethra and erectile bodies are usually normal. Synonym: penis palmatus, penoscrotal transposition...
Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..
Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..
Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..
