There are six main stages of the human life cycle, during which a human is a fetus, baby, child, adolescent, adult and elderly person. The exact age for entering each stage varies, but all healthy humans follow the same life cycle stages.Know More
The fetal stage occurs when a human is growing inside the mother's womb. During this time, the embryo grows and develops until it is ready for birth. After around nine months, the fetus is born, and the baby stage begins.
After one or two years, the baby stage is completed, and the childhood stage begins. During this stage of human development, the child begins to learn how to walk. The child’s speech also rapidly improves during this time.
When a child starts puberty, the adolescent stage begins. This stage is also called the teenage years and usually occurs between the ages of 13 and 19. A person going through the adolescent stage experiences a number of changes in body and mind, which can make it a confusing stage of development.
The adult stage begins when the body is fully developed. This stage continues for many years, until old age begins. There is no set age for when old age begins, as there isn’t a physical process or change that defines it. Most people consider old age to begin at some point between 60 and 70 years old.Learn more about Biology
The life cycle of the rabies virus is transmission, incubation, early symptoms (prodrome period) and encephalitis phase. Rabies is transmitted to a human or other animal through saliva from an infected animal, in which case transmission occurs from a bite or scratch. The final phases of rabies result in death.Full Answer >
The phase of the bryophyte life cycle that is dominant is the haploid gametophyte. Bryophytes reproduce through spores and they do not produce flowers or seeds. Gametophytes produce sperm and eggs or gametes in a special cell called a gametangium.Full Answer >
The life cycle of a fungus includes a fruiting structure that produces spores, the spores themselves and the germination of spores into a new fungus. The exact mechanism differs between sexual and asexual reproduction.Full Answer >
A mushroom's life cycle consists of sporulation, mycelium growth, mushroom primordia and growth into a mature mushroom. The mature mushroom then produces spores and the entire process is repeated.Full Answer >