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In biology, a biological life cycle (or just life cycle when the biological context is clear) is a series of stages of the life of an organism, that begins as a zygote, often in an egg, and concludes as an adult that reproduces, producing an offspring in the form of a new zygote which then itself goes through the same series of stages, the ...
All organisms follow a specific sequence in their development, [9] beginning with gestation and ending with death, which is known as the life cycle. Events in between usually include birth , childhood , maturation , reproduction , and senescence , and together these comprise the life history strategy of that organism.
Human embryonic development refers to the development and formation of the human embryo. It is characterised by the process of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, human development entails growth from a one-celled zygote to an adult human being.
Humans are also highly curious, with the desire to understand and influence phenomena having motivated humanity's development of science, technology, philosophy, mythology, religion, and other frameworks of knowledge; humans also study themselves through such domains as anthropology, social science, history, psychology, and medicine.
Not only has life expectancy not surpassed 85 in nearly any county, the U.S. famously saw a decline in life expectancy, and in 2023, it was the lowest it’s been in two decades (though Harvard ...
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
More specifically, she says, "A dream of a dragonfly can indicate an invitation to explore or go on an adventure, to dive into divination, to set intentions, or to get curious about just how good ...
Certain curious animals (namely, corvids, octopuses, dolphins, elephants, rats, etc.) will pursue information in order to adapt to their surrounding and learn how things work. [7] This behavior is termed neophilia, the love of new things. For animals, a fear of the unknown or the new, neophobia, is much more common, especially later in life. [8]