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Non-vascular plants , with their different evolutionary background, tend to have separate terminology. Although plant morphology (the external form) is integrated with plant anatomy (the internal form), the former became the basis of the taxonomic description of plants that exists today, due to the few tools required to observe. [2] [3]
An antler on a red deer stag. Velvet covers a growing antler, providing blood flow that supplies oxygen and nutrients. Each antler grows from an attachment point on the skull called a pedicle. While an antler is growing, it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone. [6]
Various nitrogen compounds were made from hartshorn shavings: . Oil of hartshorn is a crude chemical product obtained from the destructive distillation of deer antlers.; Salt of hartshorn refers to ammonium carbonate, an early form of smelling salts and baking powder obtained by dry distillation of oil of hartshorn.
While an antler is growing it is covered with highly vascular skin called velvet, which supplies oxygen and nutrients to the growing bone. [62] Antlers are considered one of the most exaggerated cases of male secondary sexual traits in the animal kingdom, [ 63 ] and grow faster than any other mammal bone. [ 64 ]
Velvet antler is the whole cartilaginous antler in a precalcified growth stage of the Cervidae family including the species of deer such as elk, moose, and caribou. Velvet antler is covered in a hairy, velvet-like "skin" known as velvet and its tines are rounded, because the antler has not calcified or finished developing.
Maize (Zea mays, Poaceae) is the most widely cultivated C 4 plant.[1]In botany, C 4 carbon fixation is one of three known methods of photosynthesis used by plants. C 4 plants increase their photosynthetic efficiency by reducing or suppressing photorespiration, which mainly occurs under low atmospheric CO 2 concentration, high light, high temperature, drought, and salinity.
Some of the most impactful biophilic design elements are the simplest, says Browning, “like having plants, animals, and natural breezes around you. Nature that is actually in your home.”
Black-tailed deer or blacktail deer occupy coastal regions of western North America. There are two subspecies, the Columbian black-tailed deer (Odocoileus hemionus columbianus) which ranges from the Pacific Northwest of the United States and coastal British Columbia in Canada [1] to Santa Barbara County in Southern California, [2] and a second subspecies known as the Sitka deer (O. h ...