1) Which body system gives your body shape and protects most major organs? a) Muscular b) Skeletal c) Circulatory d) Digestive 2) Which body system breaks down food and sends nutrients to all of the body's organs? a) Nervous b) Skeletal c) Digestive d) Excretory 3) Which system works with the skeletal system to make your body move? a) Muscular b) Nervous c) Circulatory d) Digestive 4) Which is the main organ of the nervous system? a) brain b) heart c) stomach d) kidney 5) What is the function of the heart? a) Pump oxygen through out the body. b) Pump water to the kidneys. c) Pump waste out of the body. d) Pump blood through the body. 6) What body system produces blood cells for the body? a) Nervous System b) Respiratory System c) Digestive System d) Skeletal System 7) How does the digestive system work with all other systems? a) The digestvie system transports blood to all the other systems b) The digestive system gives the body energy and nutrients c) The digestive system puts oxygen into the body d) The digestive system allows the body to move 8) The smallest unit that is a building block for all life. a) tissue b) cell c) organelle d) molecule 9) Which two systems work together to transport oxygen to the body? a)  The nervous and digestive systems b) The digestive and circulatory systems c) The respiratory and circulatory systems d) The skeletal and digestive systems 10) What do mammals and birds have in common? a) All of them lay eggs. b) They have feathers. c) They are warm blooded. d) They have nothing in common 11) How is a reptile different from an amphibian? a) scaly skin and lays eggs on land b) slimy skin c) scaly skin and always lives in water d) goes through a metamorphisis 12) Do mammals lay eggs? a) Yes b) No c) Some d) Maybe 13) What are the five types of vertebrates? a) mammals, reptiles, fish, amphibians and birds b) mammals, fish, puppies, ducks, slug c) lobsters, bats, fish, insects and snakes d) hamsters, jellyfish, squid, blob fish and shrimp 14) Is a shark a mammal, reptile or fish? a) Mammal b) Reptile c) Fish d) All 15) Are there more vertebrates or invertebrates in the world? a) Vertebrates b) Invertebrates 16) Is a jellyfish warm or cold blooded? a) Warm-blooded b) Cold-blooded 17) What is the only type of vertebrate with feathers? a) Bird b) Reptile c) Mammal d) Fish 18) All vertebrates have an endoskeleton. a) True b) False 19) This lion is a mammal because... a) It has a backbone. b) It is endothermic. c) It has fur/hair d) All 20) Which of the following animals goes through metamorphosis? a) alligator b) lizard c) frog d) turtle 21) Which kind of animal is born in water but lives on land as an adult? a) Reptile b) Amphibian c) Mammal d) Fish 22) Invertebrates do NOT have a) exoskeleton b) internal skeleton c) soft body d) eyes 23) Arthropods are invertebrates with a) a soft body b) many eyes c) exoskeleton d) bones 24) Most invertebrates are... a) Viviparous b) Oviparous 25) Look at the following picture and correctly identify the Phyla to which it belongs. a) Arthropod b) Echinoderm c) Annelid d) Mollusks 26) I have a hard exoskeleton, a segmented body, pairs of jointed appendages, and live on land and water. I am a crab. What is my phylum? a) Mollusk b) Arthropod c) Echinoderm d) Cnidarian 27) What is taxonomy? a) The study of DNA and RNA. b) The study of classifying and describing organisms c) The study of how organisms are related. d) The study of organisms in their habitat, 28) Why are coral reefs important? a) They are tourist attractions. b) They make the water shallow. c) They are colorful rocklike deposits under water. d) They serve as the habitat, hatchery, and nursery of different marine animals. 29) In a coral reef ecosystem, clown fishes and sea anemones live together. What kind of relationship do they have? a) Commensalism b) Mutualism c) Parasitism d) Predation 30) Mangroves are important for all tehse things except ... a) slowing coastal erosion b) sheltering many animals c) making coastal erosion worst d) protecting coastal towns from storm surges 31) Where are mangrove swamps located? a) along arctic coastlines b) along rocky coastlines c) along temperate coastlines d) along tropical and subtropical coastlines 32) Which of the following destroys the balance of an ecosystem? a) planting more trees b) recycling materials c) disruption of nutrient cycle d) conservation of natural resources 33) The following are the ways of restoring habitats except one. Which is it? a) reforestration b) mangrove rehabilitation c) building manmade sanctuaries d) buying products made from body parts of animals. 34) The fishermen in the barangay use dynamites in orderto have a big catch. If this practice continues, what do you think will happen to the marine resources? a) Fish will multiply fast. b) Marine life will increase. c) Marine life will decrease. d) The corals will multiply. 35) During your field trip, your tour guide explained that the forest has the highest biodiversity compared to other terrestrial ecosystems. She defined biodiversity to the group. What definition could she have given?. a) the number of layers in the forest b) the number of organisms in the forest c) the variety of habitat in the forest d) the variety of species in the forest

2nd Summative Test in Science 6

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