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Human brain. The brain is the central organ of the human nervous system, and with the spinal cord makes up the central nervous system. The brain consists of the cerebrum, the brainstem and the cerebellum. It controls most of the activities of the body, processing, integrating, and coordinating the information it receives from the sense organs ...
The raccoon(/rəˈkuːn/or US: /ræˈkuːn/ ⓘ, Procyon lotor), also spelled racoon[3]and sometimes called the common raccoonor northern raccoonto distinguish it from the other species, is a mammalnative to North America. It is the largest of the procyonidfamily, having a body length of 40 to 70 cm (16 to 28 in), and a body weight of 5 to 26 ...
The narwhal ( Monodon monoceros) is a species of toothed whale native to the Arctic. It is the only member of the genus Monodon, and one of two living representatives of the family Monodontidae. The narwhal has a similar build to the closely related beluga whale, with which it overlaps in range and can interbreed.
NEC, which causes the death of bowel tissue, mostly affects premature newborns and has a fatality rate of between 15% and 40%. Gill's child, Robynn Davis, who developed NEC after being given ...
Brain–body mass ratio, also known as the brain–body weight ratio, is the ratio of brain mass to body mass, which is hypothesized to be a rough estimate of the intelligence of an animal, although fairly inaccurate in many cases. A more complex measurement, encephalization quotient, takes into account allometric effects of widely divergent ...
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body. [2] [7] These contrast with benign tumors, which do not spread. [7] Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss, and a change in bowel movements. [1]
Pediculus humanus humanus. Linnaeus, 1758. The body louse ( Pediculus humanus humanus, also known as Pediculus humanus corporis) or the cootie is a hematophagic ectoparasite louse that infests humans. [ 1] It is one of three lice which infest humans, the other two being the head louse, and the crab louse or pubic louse.
A typical adult has a blood volume of approximately 5 liters, with females and males having approximately the same blood percentage by weight (approx 7 to 8%) [ 1][ 2] Blood volume is regulated by the kidneys . Blood volume (BV) can be calculated given the hematocrit (HC; the fraction of blood that is red blood cells) and plasma volume (PV ...