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1 giorno fa · Homo (from Latin homō 'human') is a genus of great ape that emerged from the genus Australopithecus and encompasses the extant species Homo sapiens (modern humans) and a number of extinct species (collectively called archaic humans) classified as either ancestral or closely related to modern humans, including Homo erectus and Homo ...
7 ore fa · Humans often think we are unique, with abilities and behaviors far more complex than our distant animal cousins. But in fact, many creatures, from tiny insects to our closest living relatives, ...
7 ore fa · Changes to the inhibitory nature of regions of the brain can also be found in humans and other mammals. In the amphibian Bufo japonicus, part of the amygdala is larger before breeding and during hibernation than it is after breeding. Seasonal brain variation occurs within many mammals.
1 giorno fa · The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to 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. The similarities among all known present-day species indicate that they have diverged through the process of ...
7 ore fa · In nature, they do not occur separate from lichens. It is unknown when they began to associate. One mycobiont associates with the same phycobiont species, rarely two, from the green algae, except that alternatively, the mycobiont may associate with a species of cyanobacteria (hence "photobiont" is the more accurate term).
7 ore fa · Rapid—and massive—increases in the number of certain cell types were also seen in decedents receiving pig hearts. In D1, one of the human decedents, but not in the other, activated T cell and natural killer (NK) cell populations within the PBMC group increased from about 1 percent 30 hours posttransplant to more than 20 percent of the entire PBMC population 66 hours after the procedure.
7 ore fa · Vedas Rigveda manuscript page, Mandala 1, Hymn 1 (Sukta 1), lines 1.1.1 to 1.1.9 (Sanskrit, Devanagari script) Information Religion Historical Vedic religion Hinduism Language Vedic Sanskrit Period Vedic period c. 1500 –1200 BCE (Rigveda), c. 1200 –900 BCE (Yajurveda, Samaveda, Atharvaveda) Verses 20,379 mantras Full text The Vedas at English Wikisource Part of a series on Hindu scriptures ...
