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Hace 1 día · The human immunodeficiency viruses ( HIV) are two species of Lentivirus (a subgroup of retrovirus) that infect humans. Over time, they cause acquired immunodeficiency syndrome (AIDS), [1] [2] a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive. [3]
Hace 3 días · The development of the human lungs arise from the laryngotracheal groove and develop to maturity over several weeks in the foetus and for several years following birth. [52] The larynx , trachea , bronchi and lungs that make up the respiratory tract, begin to form during the fourth week of embryogenesis [53] from the lung bud which appears ventrally to the caudal portion of the foregut .
30 de jun. de 2024 · Thought. The Thinker by Rodin (1840–1917), in the garden of the Musée Rodin. In their most common sense, the terms thought and thinking refer to cognitive processes that can happen independently of sensory stimulation. Their most paradigmatic forms are judging, reasoning, concept formation, problem solving, and deliberation.
Hace 5 días · The Human Torch ( Jonathan Lowell Spencer " Johnny " Storm) is a superhero appearing in American comic books published by Marvel Comics. The character is a founding member of the Fantastic Four. He is writer Stan Lee 's and artist Jack Kirby 's reinvention of a similar, previous character, the android Human Torch of the same name and powers who ...
Hace 5 días · Pregnancy is "the presence of an implanted human embryo or fetus in the uterus"; implantation occurs on average 8–9 days after fertilization. An embryo is the term for the developing offspring during the first seven weeks following implantation (i.e. ten weeks' gestational age), after which the term fetus is used until birth.
Hace 6 días · Human nature and the accompanying bodily sensations have always been part of the interests of thinkers and philosophers. Far more extensively, this has also been of great interest to both Western and Eastern societies. Emotional states have been associated with the divine and with the enlightenment of the human mind and body.
Hace 2 días · The sample on the left is the first milk produced by the mother, while the sample on the right was produced later during the same breast pumping cycle. Breast milk (sometimes spelled as breastmilk) or mother's milk is milk produced by the mammary glands in the breast of human females. Breast milk is the primary source of nutrition for newborn ...
