JAN- FEBRUARY 2012 PART 1 PART 1 Circle the best answer. 1. The list below states examples of adaptations for escaping from predators except: A. living in groups C. hiding EXTREME SCIENCE WORKSHEET B. having flippers D. using camouflage 2. Study the picture below. 3. The statements below explain the adaptations of the Viceroy butterfly for escaping from predators. Which of the following statements are true? I. II. III. IV. The Viceroy butterfly is foul tasting. The Viceroy butterfly is poisonous. The Viceroy butterfly uses mimicry to avoid being eaten by predators. The Viceroy butterfly mimics the Monarch butterfly which is toxic. A. I and II only. C. II and III only. Which of the following adaptation does the puffer fish use to escape from predators? A. Hiding. C. Appearing bigger and fiercer when threatened. B. Living in groups. D. Taking on the appearance of other animals. B. III and IV only D. All of the above 4. The list below states animals which live in groups to escape from predators except: A. elephants C. tortoises B. zebras D. water buffaloes 1 PART 2 Answer the questions in the spaces provided. 5. Adaptations are characteristics which help an animal survive its environment. a. List four purposes of adaptations. 1. ____________________________________________________________ 2. ____________________________________________________________ 3. ____________________________________________________________ 4. ____________________________________________________________ Some animals have structural adaptations to defend themselves against predators. b. The picture above is of a porcupine. Explain in detail how a porcupine defends itself against predators. ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ c. Some animals have structural adaptations that allow them to move quickly away from their predators. Name two organisms which have this adaptation. ________________________________________________________________ ________________________________________________________________ 2 Answer Scheme 1. C. having flippers SMART TIPS: Having flippers are adaptations some animals have for moving in water. Seals and turtles have flippers to help them move easily in water when they search for food. Grazing animals often feed in herds. When a predator attacks, the animals scatter and run in different directions which confuses the predator and allows the animals to escape. Some animals never venture too far from their home in underground dens or thick vegetation and can quickly hide when danger approaches. Many animals have keen senses of sight, smell, and hearing so that they can detect danger and escape. Some animals have horns or antlers to fight off predators. Some animals are active only at night when it is harder for predators to find them. Many animals rely on camouflage or the ability to blend in with their surroundings to hide from predators. A few animals are even poisonous or unpleasant-tasting, and predators soon learn to leave such animals alone. These poisonous kinds of animals are often brightly colored, as well, which acts as a warning to predators. 2. C. Appearing bigger and fiercer when threatened. SMART TIPS: The puffer fish (also known as the blowfish and the toadfish) is a medium-sized species of fish that inhabits warmer, coastal waters around the world. The puffer fish has the remarkable ability to expand its body extremely quickly when faced with danger, unavailing its long poisonous spikes that cover its body. 3. B. III and IV SMART TIPS: Some butterflies are poisonous. When a predator, like a bird, eats one of these butterflies, it becomes sick and vomits violently. It quickly learns not to eat this type of butterflies. The sacrifice of one butterfly will save the lives of many of its kind and other species that look like it. Being tasty is not a good thing for a butterfly and because of this, many species use mimicry. This is a handy defense for butterflies who are tasty and brightly coloured. Their color patterns have evolved to appear like some of their foul-tasting relatives. A good example is the brightly coloured Viceroy whose orange and black pattern is extremely similar to the toxic Monarch. Any predator that survived a Monarch the first time would never again eat something orange and black. 4. C. tortoises SMART TIPS: Zebras are common zebrid animals with black and white strips to confuse the predators. The water buffaloes are said to have originated in Asia and have been domesticated worldwide. The wild Asian Buffalo is said to be an endangered animal. These are herbivores and spend most of their time submerged in water. There are large herds of water buffaloes found in Africa. African elephants have excellent memory and intelligence. They are characterized by their large heads and two large ears that cover their shoulders to radiate heat. 3 5. a. Adaptations is needed for: 1. obtaining food. 2. escaping from predators. 3. reproduction. 4. coping with the physical factors of the environment. b. Porcupines defend themselves from predators in a variety of ways. Even without trying, a porcupine warns its enemies that it is a dangerous animal through its coloration. The white-tipped quills on a black band on the tail and back stand out, and warn possible predators of danger. If their coloration pattern does not deter predators, porcupines often avoid danger by climbing a tree to escape. They can also clatter their teeth, which is another way that they warn predators. If these warnings fail, a porcupine will erect its quills, and release a nasty scent. Quills are only used for defense if the threat has not been deterred by these other means. c. Antelopes, squids, rabbits, gazelles and deer. ( Accept any suitable answers. ) 4