Questions 1 - 10:
Complete the notes below. Write ONE WORD ONLY for each answer.
Complete the notes below. Write ONE WORD ONLY for each answer.
Tardigrades• more than 1,000 species, 0.05- 1.2 millimetres long • also known as water 'bears' (due to how they 1) and 'moss piglets' Physical appearance • a 2 round body and four pairs of legs • claws or 3 for gripping • absence of respiratory organs • body filled with a liquid that carries both 4 and blood • mouth shaped like a 5 with teeth called stylets Habitat • often found at the bottom of a lake or on plants • very resilient and can exist in very low or high 6 Cryptobiosis • In dry conditions, they roll into a ball called a 'tun'. • They stay alive with a much lower metabolism than usual. • A type of 7 ensures their DNA is not damaged. • Research is underway to find out how many days they can stay alive in 8. Feeding • consume liquids, e.g., those found in moss or 9 • may eat other tardigrades Conservation status • They are not considered to be 10. |