Quizzes, tests, exercises and puzzles for English as a Second Language (ESL), English as a foreign language (EFL), Teaching EFL (TEFL), Test of EFL (TOEFL), English for speakers of other languages (ESOL), Teaching ESOL (TESOL), TOEIC.
Fact
Some Ribbon worm will eat themselves if they cannot find food. This type of worm can still survive after eating up to 95% of its body weight .. More >>