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Hace 5 días · Breast cancer is a cancer that develops from breast tissue. [7] Signs of breast cancer may include a lump in the breast, a change in breast shape, dimpling of the skin, milk rejection, fluid coming from the nipple, a newly inverted nipple, or a red or scaly patch of skin. [1] In those with distant spread of the disease, there may be bone pain ...
Hace 1 día · Sponges are similar to other animals in that they are multicellular, heterotrophic, lack cell walls and produce sperm cells. Unlike other animals, they lack true tissues [12] and organs. [13] Some of them are radially symmetrical, but most are asymmetrical.
Hace 3 días · Beta blocker. Skeletal formula of propranolol, the first clinically successful beta blocker. Beta blockers, also spelled β-blockers, are a class of medications that are predominantly used to manage abnormal heart rhythms ( arrhythmia ), and to protect the heart from a second heart attack after a first heart attack ( secondary prevention ). [1]
Hace 3 días · Wilcox's definition was "Biological diversity is the variety of life forms...at all levels of biological systems (i.e., molecular, organismic, population, species and ecosystem)...". [23] A publication by Wilcox in 1984: Biodiversity can be defined genetically as the diversity of alleles, genes and organisms.
Hace 2 días · In Chinese culture, the bamboo, plum blossom, orchid, and chrysanthemum (often known as méi lán zhú jú 梅蘭竹菊 in Chinese) are collectively referred to as the Four Gentlemen. These four plants also represent the four seasons and, in Confucian ideology, four aspects of the junzi ("prince" or "noble one").
Hace 2 días · Photosynthesis ( / ˌfoʊtəˈsɪnθəsɪs / FOH-tə-SINTH-ə-sis) [1] is a system of biological processes by which photosynthetic organisms, such as most plants, algae, and cyanobacteria, convert light energy, typically from sunlight, into the chemical energy necessary to fuel their activities.
Hace 4 días · Plants vs. Zombies is a 2009 tower defense video game developed and published by PopCap Games. First released for Windows and Mac OS X, the game has since been ported to consoles, handhelds, and mobile devices. The player takes the role of a homeowner amid a zombie apocalypse. As a horde of zombies approaches along several parallel lanes, the ...
