why are caribous unique
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- The reindeer (Rangifer tarandus), also known as caribou in North America, is a species of deer with circumpolar distribution, native to Arctic, Subarctic, tundra, boreal and mountainous regions of northern Europe, Siberia, and North America.This includes both sedentary and migratory populations.he reindeer (Rangifer tarandus), also known as caribou in North America, is a species of deer with circumpolar distribution, native to Arctic, Subarctic, tundra, boreal and mountainous regions of northern Europe, Siberia, and North America. This includes both sedentary and migratory populations.
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- The caribou evolved in North America and spread to Eurasia where they are known as reindeer.. The glacial-interglacial cycles of the upper Pleistocene had a major influence on the evolution of Rangifer tarandus and other Arctic and sub-Arctic species.
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- Saving Kidneys, Saving Lives. FSGS Facts. More than 5400 patients are diagnosed with FSGS every year, however, this is considered an underestimate because: a limited number of biopsies are performed. the number of FSGS cases are rising more than any other cause of Nephrotic Syndrome.1.
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- Adorable animal families that will make you aww. The osteon is the primary structure that makes up the hard outer layer of bones, which is generally known as “ cortical bone .” Cortical bone, or compact bone, is dense, mature bone found in vertebrates such as mammals, amphibians, reptiles, and birds.It is this dense hard layer that gives a person or animal strength.dorable animal families that will make you aww. The osteon is the primary structure that makes up the hard outer layer of bones, which is generally known as “ cortical bone .” Cortical bone, or compact bone, is dense, mature bone found in vertebrates such as mammals, amphibians, reptiles, and birds.
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Giant trevally Juveniles of the species are known to live in waters of very low salinity such as coastal lakes and upper reaches of rivers, and tend to prefer turbid waters. The giant trevally is a powerful apex predator in most of its habitats, and is known to hunt individually and in schools.uveniles of the species are known to live in waters of very low salinity such as coastal lakes and upper reaches of rivers, and tend to prefer turbid waters. The giant trevally is a powerful apex predator in most of its habitats, and is known to hunt individually and in schools.
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- The Island Caribs, also known as the Kalinago or simply Caribs, are an indigenous people of the Lesser Antilles in the Caribbean.They may have descended from the Mainland Caribs (Kalina) of South America, but they spoke an unrelated language known as Island Carib.At the time of Spanish contact, the Caribs were one of the dominant groups in the Caribbean, which owes its name to them.They lived throughout the Windward Islands, Dominica, and possibly the southern Leeward Islands.t the time of Spanish contact, the Caribs were one of the dominant groups in the Caribbean, which owes its name to them. They lived throughout the Windward Islands, Dominica, and possibly the southern Leeward Islands.
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- Spongy (cancellous) bone makes up short, flat, and irregularly shaped bones. It also forms the ends (epiphysis) of long bones. Its structural units are called trabeculae “little beams” and within the spaces of these irregular frameworks of columns are found red bone marrow – the sites of blood cell production.The spongy appearance is due to these trabeculae.t is also found in the epiphyseal plate between the end of the bone (epiphysis) and the long, cylindrical body of the bone (diaphysis.) This structure allows for bone growth. As the individual matures and bone growth ceases, this structure becomes replaced with bone and becomes the epiphyseal line.
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- Lampreys and hagfishes are the only jawless vertebrates to survive today. They both have a round mouth and for this reason are often referred to as cyclostomes. They are the most primitive of the vertebrates. By primitive, a biologist means that they are the least changed from the first vertebrates.1  They have no paired pectoral (shoulder) or pelvic (hip) fins. 2  Their notochord persists for life, never being completely replaced by a backbone even in the lampreys.3  They have no scales.y primitive, a biologist means that they are the least changed from the first vertebrates. 1  They have no paired pectoral (shoulder) or pelvic (hip) fins. 2  Their notochord persists for life, never being completely replaced by a backbone even in the lampreys. 3  They have no scales.
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- Homologous structures are parts of the body that are similar in structure to other species' comparative parts. These similarities are evidence that life on Earth has a common ancient ancestor that the diverse species have evolved from over time.omologous structures are parts of the body that are similar in structure to other species' comparative parts. These similarities are evidence that life on Earth has a common ancient ancestor that the diverse species have evolved from over time.
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- Compact bone is found in the diaphysis (shaft) of long bones and as the outer layer of all bones. cancellous (spongy) bone-Consists of trabeculae (a network) of thin, connecting spicules which form a meshwork in the interior of bones. Spaces between the trabeculae contain marrow and blood vessels.ompact bone is found in the diaphysis (shaft) of long bones and as the outer layer of all bones. cancellous (spongy) bone-Consists of trabeculae (a network) of thin, connecting spicules which form a meshwork in the interior of bones. Spaces between the trabeculae contain marrow and blood vessels.
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- Beaumont, TX; Make this place my home; Sign in to add favorites; Detect my location
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- Haversian systems are only found in compact bone. Their specific arrangements within compact bone contribute to the strength of this osseous tissue type. Cancellous or spongey bone is found forming the core of most flat and irregular bones. It is also very prevalent in the epiphyses(ends) of long bones.The construction of this osseous tissue type is quite different than that of compact bone.One key difference is the absence of osteons!ancellous or spongey bone is found forming the core of most flat and irregular bones. It is also very prevalent in the epiphyses(ends) of long bones. The construction of this osseous tissue type is quite different than that of compact bone. One key difference is the absence of osteons!
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- The Chondrichthyes are the cartilaginous fishes including the sharks, rays, skates and chimaeras. The Osteichthyes are the bony fish. Both of these groups became established d … uring the Devonian Period about 400 million years ago.The Chondrichthyes differ from the Osteichthyes in many respects, including their skeletons, scales, teeth, buoyancy, swimming, gills and reproduction. Scales:   Cartilaginous fish have large scales called placoid scales. These have a bone like base embedded in the skin and a backward projecting enamel covered dentine spine. The whole thing has a central pulp cavity (rather like the structure of teeth). The epidermis and dermis form placoid scales.
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- Carib was a name used by Europeans to describe those people who inhabited the islands of the Lesser Antilles at the time of Columbus' second voyage in 1493.This was not what the people called themselves.spects of Carib/Kalinago Culture. Carib was a name used by Europeans to describe those people who inhabited the islands of the Lesser Antilles at the time of Columbus' second voyage in 1493. This was not what the people called themselves.
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Caribou  ( Rangifer tarandus granti)Species Profile In Europe, caribou are called reindeer, but in Alaska and Canada only the semi-domesticated form is called reindeer. All caribou and reindeer throughout the world are considered to be the same species, but there are 7 subspecies: barrenground (Rangifer tarandus granti), Svalbard (R.t platyrhynchus), European (R.t.
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- There are 2 types of bone tissue: Spongy or cancellous  bone (head of most large bones, ribs, shoulder blade) and  Compact (in the diaphysis or middle part of large bones). …  Compact bone forms the extremely hard exterior while spongy bone  (also called cancellous bone) fills the hollow interior.here are 2 types of bone tissue: Spongy or cancellous  bone (head of most large bones, ribs, shoulder blade) and  Compact (in the diaphysis or middle part of large bones). …  Compact bone forms the extremely hard exterior while spongy bone  (also called cancellous bone) fills the hollow interior.
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- Caribou (North America) refers to any of several North American subspecies, ecotypes, populations, and herds of the species Rangifer tarandus. In North America caribou range in size from the smallest, the Peary caribou, to the largest, the boreal woodland caribou.he woodland caribou is the largest of the North American caribou subspecies. Their legs and heads are longer than the barren-ground caribou. Porcupine, the barren-ground Bluenose caribou herd, and woodland caribou all occupy Gwich'in land.
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Homologous: Definition, Characteristics & Structure Examples The term homologous comes from the Greek homos meaning same and logos meaning relation. So, literally, it means having the same relation. To make that a little clearer, we can say it means having a similar relative position, structure, function or origin.However, that definition is still somewhat broad and ambiguous. The reason for this is because the term homologous is used in several different fashions in biology.o make that a little clearer, we can say it means having a similar relative position, structure, function or origin. However, that definition is still somewhat broad and ambiguous. The reason for this is because the term homologous is used in several different fashions in biology.
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Fossil Focus: Trilobites Trilobites make up one of the most fascinating and diverse groups in the fossil record. Over the course of their long history — which dates back to near the beginning of the Cambrian period, around 520 million years ago — they have inhabited a wide range of marine environments, from reefs to abyssal depths.rilobites make up one of the most fascinating and diverse groups in the fossil record. Over the course of their long history — which dates back to near the beginning of the Cambrian period, around 520 million years ago — they have inhabited a wide range of marine environments, from reefs to abyssal depths.
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- Adorable animal families that will make you aww. Human body cavities are spaces containing interstitial fluid and organs that are associated through function. For example, within the dorsal cavity, there is the brain and spinal cord, organs necessary for transmission of nerve cell impulses throughout the body.dorable animal families that will make you aww. Human body cavities are spaces containing interstitial fluid and organs that are associated through function. For example, within the dorsal cavity, there is the brain and spinal cord, organs necessary for transmission of nerve cell impulses throughout the body.
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Carib 1 Kalina people, or Caribs, an indigenous people of South America. 2  Carib language, also known as Kalina, the language of the South American Caribs. 3  Island Caribs, or simply Caribs, an indigenous people of the Lesser Antilles in the Caribbean. Cariban languages, the wider family of languages that includes Carib (but not Island Carib). 2  Black Carib, indigenous people from the island of Saint Vincent, descended from Island Caribs and black slaves. 3  Garifuna people, Central American people descended from Saint Vincent's Black Caribs.
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- Bone or osseous tissue is found in two different forms: compact bone. cancellous or spongey bone. Compact bone is a very dense tissue forming the outer layer of all bones and the thickened shafts or diaphyses of long bones.ancellous or spongey bone is found forming the core of most flat and irregular bones. It is also very prevalent in the epiphyses(ends) of long bones. The construction of this osseous tissue type is quite different than that of compact bone. One key difference is the absence of osteons!
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Platypus Platypuses are both bizarre looking and unusually adapted. They belong to a sub-group of mammals that lay eggs rather than giving birth to live young (monotremes). When the first platypus was shipped to Britain from Australia, people thought it was a joke and that someone had sewn a duck's bill to a mammal's body.latypuses are both bizarre looking and unusually adapted. They belong to a sub-group of mammals that lay eggs rather than giving birth to live young (monotremes). When the first platypus was shipped to Britain from Australia, people thought it was a joke and that someone had sewn a duck's bill to a mammal's body.
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Carib Kalina people, or Caribs, an indigenous people of South America Carib language, also known as Kalina, the language of the South American Caribs. Island Caribs, or simply Caribs, an indigenous people of the Lesser Antilles in the Caribbean Island Carib language, or simply Carib, the language of the Island Caribs. Cariban languages, the wider family of languages that includes Carib (but not Island Carib) Black Carib, indigenous people from the island of Saint Vincent, descended from Island Caribs and black slaves. Garifuna people, Central American people descended from Saint Vincent's Black Caribs.
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Carissa macrocarpa Carissa macrocarpa (Natal Plum), is a shrub native to South Africa, where it is commonly called the Large Num-Num. In Zulu, as well as in the Bantu tribes of Uganda, it is called amatungulu. In Afrikaans the fruit is called Noem-Noem.arissa macrocarpa grows mainly in coastal areas in South Africa. It can be found on sand dunes and on the edges of coastal forests in Eastern Cape Province northwards from Natal to Mozambique.
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- Skates and Rays. Cartilaginous fish (scientific name Chondrichthyes) have a skeleton made from cartilage instead of bone. Cartilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras.There are approximately 600 different species of rays and skates and about 500 shark species. Rays and skates live in oceans throughout the world. Most rays and skates live on the bottom of the ocean while some live in open water.artilage is tough and flexible and provides enough structural support to allow these fish to grow to very large sizes. Cartilaginous fish include sharks, rays, skates and chimaeras. There are approximately 600 different species of rays and skates and about 500 shark species.