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An ovoid is the surface in 3-dimensional space generated by rotating an oval curve about one of its axes of symmetry. The adjectives ovoidal and ovate mean having the characteristic of being an ovoid, and are often used as synonyms for "egg-shaped".
The higher dimensional analog of an oval is an ovoid in a projective space. A generalization of the oval concept is an abstract oval, which is a structure that is not necessarily embedded in a projective plane. Indeed, there exist abstract ovals which can not lie in any projective plane.
For an ovoid and a hyperplane , which contains at least two points of , the subset is an ovoid (or an oval, if d = 3) within the hyperplane . For finite projective spaces of dimension d ≥ 3 (i.e., the point set is finite, the space is pappian [ 1 ] ), the following result is true:
A cat's skin has the same color as the fur, but the color of the nose leather is probably dictated by a dedicated gene. Cats with white fur have skin susceptible to damage by ultraviolet light, which may cause cancer. Extra care is required when outside in the hot sun. [7]
Cat species vary greatly in body and skull sizes, and weights: The largest cat species is the tiger (Panthera tigris), with a head-to-body length of up to 390 cm (150 in), a weight range of at least 65 to 325 kg (143 to 717 lb), and a skull length ranging from 316 to 413 mm (12.4 to 16.3 in).
Blue is the range of Felinae (excluding the domestic cat), green is the range of Pantherinae. Felidae is a family of mammals in the order Carnivora, colloquially referred to as cats. A member of this family is called a felid. [1] [2] The term "cat" refers both to felids in general and specifically to domestic cats.
Cats seem to have a sense of when their humans are feeling unwell and if their favorite person is laid up on the couch or has taken to their bed with a cold or the flu, they'll often camp out ...
Felidae (/ ˈ f ɛ l ɪ d iː /) is the family of mammals in the order Carnivora colloquially referred to as cats. A member of this family is also called a felid ( / ˈ f iː l ɪ d / ). The 41 extant Felidae species exhibit the greatest diversity in fur patterns of all terrestrial carnivores.