Medium General Science GENERAL SCIENCE FPSC Question Which of the following organisms is invertebrate? A Birds B Amphibians C Reptiles D Worms Submit Answer Try Again Explanation Explanation An invertebrate is an animal without a backbone. Worms, like earthworms, are classified as invertebrates. They lack a backbone and are found in various environments. Show Explanation Previous MCQ All MCQs Next MCQ More MCQs in General Science Medium Vertebrates animals that take on the temperature of their surrounding are called Vertebrates animals that take on the temperature of their surrounding are called? Medium Vertebrates are divided into how many main groups based on temperature regulatio Vertebrates are divided into how many main groups based on temperature regulation? Medium A magnet that is hard to magnetize is called a(n)? A magnet that is hard to magnetize is called a(n)? Medium Birds exhibits which of the following traits? Birds exhibits which of the following traits?