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A marine habitat is a habitat that supports marine life.Marine life depends in some way on the saltwater that is in the sea (the term marine comes from the Latin mare, meaning sea or ocean).
Idealised vertebrate body plan, showing key characteristics. Vertebrates (and other chordates) belong to the Bilateria, a group of animals with mirror symmetrical bodies. [6] They move, typically by swimming, using muscles along the back, supported by a strong but flexible skeletal structure, the spine or vertebral column. [7]
The lampreys are a very ancient lineage of vertebrates, though their exact relationship to hagfishes and jawed vertebrates is still a matter of dispute. [7] Molecular analysis since 1992 has suggested that hagfish are most closely related to lampreys, [8] and so also are vertebrates in a monophyletic sense. Others consider them a sister group ...
Archaeopteryx was the first fossil to display both clearly traditional reptilian characteristics—teeth, clawed fingers, and a long, lizard-like tail—as well as wings with flight feathers similar to those of modern birds. It is not considered a direct ancestor of birds, though it is possibly closely related to the true ancestor.
Each vertebra (pl.: vertebrae) is an irregular bone with a complex structure composed of bone and some hyaline cartilage, that make up the vertebral column or spine, of vertebrates. The proportions of the vertebrae differ according to their spinal segment and the particular species.
Animals have structural characteristics that set them apart from all other living things: cells surrounded by an extracellular matrix [19] composed of collagen [20] [21] and; elastic glycoproteins [19] [22] motility [23] i.e. able to spontaneously move their bodies during at least part of their life cycle. a blastula stage during embryonic ...
Kristaps Porzingis scored 26 of his season-high 34 points in the first half, and the Boston Celtics coasted to a 122-100 victory over the Chicago Bulls on Wednesday night. Jaylen Brown added 28 ...
It also assists scientists in classifying organisms based on similar characteristics of their anatomical structures. A common example of comparative anatomy is the similar bone structures in forelimbs of cats, whales, bats, and humans. All of these appendages consist of the same basic parts; yet, they serve completely different functions.
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