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Compared to the US and Canada, Mexico uses a grading system that can be converted into the US's letter grade equivalency. For example, a Mexican numeral grade of 90 can be equivalent to the US's letter grade of an A. An 80 can be converted to a B, and so on. The following chart shows the following GPA range and their equivalencies.
Grading in education is the application of standardized measurements to evaluate different levels of student achievement in a course. Grades can be expressed as letters (usually A to F), as a range (for example, 1 to 6), percentages, or as numbers out of a possible total (often out of 100).
The top grade, A, is given here for performance that exceeds the mean by more than 1.5 standard deviations, a B for performance between 0.5 and 1.5 standard deviations above the mean, and so on. [17] Regardless of the absolute performance of the students, the best score in the group receives a top grade and the worst score receives a failing grade.
Thus, it is now divided between 4, the failing grade, and 5–10, the succeeding grades. Upper secondary school has the same grades for courses and course exams as a comprehensive school but matriculation examination grades are in Latin. Universities and vocational institutions use a scale of 0 (fail) and 1–5 (pass) or fail/pass.
Note that the grades used in primary school are derived from this scale, with Insufficient meaning "4 or less", and the other grades standing for 5-6, 7-8 and 9-10 respectively. A 10 is not an uncommon grade, especially in low-interest subjects. A 9 is usually considered an excellent grade. The average grade ranges between 7 and 8.
Sequence evolution at least in mtDNA is known to proceed much more slowly in some turtles and tortoises than in others; [5] the rate of the mitochondrial 12S rRNA gene in Testudo is probably a rather low 1.0–1.6% per million years (as this fits best the paleobiogeographical situation), limiting the resolution provided by molecular systematics ...
The Jackson ratio is calculated by taking the weight of the tortoise in grams and dividing it by the cube of the length of the tortoise's carapace in centimeters. [1] This is essentially a value of the density of the tortoise in g/cm 3. The optimal value for this ratio is 0.21 with a range of 0.18–0.22 being acceptable for hibernation.
Greek tortoise Temporal range: Pliocene–Holocene Pre๊ ๊ O S D C P T J K Pg N Possible Late Miocene record T. g. nabeulensis male in Tunisia Conservation status Vulnerable (IUCN 3.1) Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Chordata Class: Reptilia Order: Testudines Suborder: Cryptodira Superfamily: Testudinoidea Family: Testudinidae Genus: Testudo Species: T ...