Leeches are famous as blood-suckers. The species that feed on blood have special chemicals in their saliva that prevents blood-clotting. Many blood-feeding leeches attack only fish, a few attack any vertebrate (including people), and a few are specialists on another group of animals, like turtles or waterbirds. There are also lots of leech species that don't suck blood. They are predators, eating worms, snails, aquatic insects, and other invertebrates.
The Minimum: 2 Months or 100 Total Hours. Studying for the LSAT should really take at least two months (or about 100 total hours of studying). Any less than that, and you probably wonât get the practice youâll need to get through the concepts tested.
1 LSAT test scores range between 120 to 180. 2  Walk-in registration on the day of the test is not permitted at any test center for any LSAT test administration. 3  We recommend students spend, minimally, 2â3 months prepping for the LSAT. 150 to 300 hours studying for the LSAT exam. Thatâs an average of 20 to 25 hours per week over a 2- to 3-month period. This depends on individual factors like how long youâve been out of school and how much free time you have each week to devote to LSAT preparation. 9 The LSAT is used for admission to law schools in the United States, Canada, Puerto Rico, India, Australia, and a growing number of other countries.