Life Cycle, Processes & Properties, WHI-ZYG
None of us are born looking exactly the way that we do today; this is because humans, like other species, undergo a series of changes as they mature and age, in accordance with their biological life cycle. This process can look very different across different species. In many simple organisms and in higher animals, the life cycle is completed within a single generation, while in most plants, the life cycle is multigenerational.
Life Cycle, Processes & Properties Encyclopedia Articles By Title
whiplash, injury to the cervical spine and its soft tissues caused by forceful flexion or extension of the neck,......
white nose syndrome, disease affecting hibernating bats in North America that is caused by the growth of a white......
whooping cough, acute, highly communicable respiratory disease characterized in its typical form by paroxysms of......
Plants are green because of a pigment found in the chloroplasts of plant cells called chlorophyll. It plays a crucial......
Different blood groups are the result of genetic variations that determine the presence or absence of specific......
While purring is often associated with a cat’s contentment, such as when they are being petted or snuggled up in......
Eyebrows are like the unsung heroes of the face, quietly doing their job of protecting the eyes from the glare......
Salmon are biologically programmed to die after spawning, a phenomenon known as semelparity. This is a reproductive......
As snakes grow, their skin does not grow with them. Instead, they periodically shed their outer layer of skin to......
Steen Willadsen is a Danish embryologist who was the first to clone a mammal from embryonic cells in a technique......
Ian Wilmut was a British developmental biologist who was the first to use nuclear transfer of differentiated adult......
Wilson disease, a rare hereditary disorder characterized by abnormal copper transport that results in the accumulation......
Edmund Beecher Wilson was an American biologist known for his researches in embryology and cytology. In 1891 Wilson......
wilt, common symptom of plant disease resulting from water loss in leaves and stems. Affected parts lose their......
witches’-broom, symptom of plant disease that occurs as an abnormal brushlike cluster of dwarfed weak shoots arising......
woolly bear, Caterpillar of a tiger moth. The larva of the Isabella tiger moth (Isia isabella), known as the banded......
workaholism, compulsive desire to work. Workaholism is defined in various ways. In general, however, it is characterized......
wound, a break in the continuity of any bodily tissue due to violence, where violence is understood to encompass......
xanthinuria, rare inherited disorder of purine metabolism that results from a deficiency in the enzyme xanthine......
xenophobia, fear and contempt of strangers or foreigners or of anything designated as foreign, or a conviction......
xeroderma pigmentosum, rare, recessively inherited skin condition in which resistance to sunlight and other radiation......
XYY-trisomy, relatively common human sex chromosome anomaly in which a male has two Y chromosomes rather than one.......
Ryuzo Yanagimachi was a Japanese-born American scientist whose team cloned the second live mammal, a mouse, and......
yaws, contagious disease occurring in moist tropical regions throughout the world. It is caused by a spirochete,......
yellow fever, acute infectious disease, one of the great epidemic diseases of the tropical world, though it sometimes......
yersiniosis, acute gastrointestinal infection caused by the bacterium Yersinia enterocolitica and characterized......
yolk, the nutritive material of an egg, used as food by a developing, embryonic animal. Eggs with relatively little,......
Zellweger syndrome, congenital disorder characterized by complete absence or reduction in the number of peroxisomes......
Zika fever, infectious mosquito-borne illness, typically mild in humans but capable in utero of causing brain anomalies......
zoonotic disease, any of a group of diseases that can be transmitted to humans by nonhuman vertebrate animals,......
zoophilia, sexual attraction of a human toward a nonhuman animal, which may involve the experience of sexual fantasies......
zygote, fertilized egg cell that results from the union of a female gamete (egg, or ovum) with a male gamete (sperm).......
