Directed Reading B. Section: Domains and Kingdoms

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1 Skills Worksheet Directed Reading B Section: Domains and Kingdoms 1. What categories did people think all organisms fit into before Euglena was discovered? a. plants or animals b. fish or birds c. plants or mammals d. animals or trees WHAT IS IT? 2. On what basis do scientists classify organisms? a. shape b. size c. smell d. characteristics 3. What are some of Euglena s plantlike characteristics? a. single celled, moves around b. green, tall, has flowers c. green, makes food d. moves, eats other organisms 4. What are some of Euglena s animal-like characteristics? a. single celled, moves around b. green, tall, has flowers c. single celled, green, makes food d. moves, eats other organisms Holt science and Technology 14 Classification

2 5. What kingdom did scientists add for organisms that may have both plant and animal characteristics? a. Euglena b. Protista c. Fungi d. Animalia 6. Today, how many domains are in the classification system? a. five b. three c. seven d. eight THE DOMAIN ARCHAEA 7. What is the name given to small, single-celled organisms with no nuclei? a. seeds b. prokaryotes c. Euglena d. germs 8. What kind of prokaryote can live where other organisms cannot survive? a. archaea b. bacteria c. protista d. fungi Holt science and Technology 15 Classification

3 THE DOMAIN BACTERIA 9. Which vitamin is produced in the human intestines by bacteria? a. vitamin C b. vitamin A c. vitamin K d. vitamin E 10. What kind of food do bacteria help us make from milk? a. ice cream b. milkshakes c. whipped cream d. yogurt 11. What kind of infection can some kinds of bacteria cause in people? a. bad colds b. flu c. pneumonia d. warts Holt science and Technology 16 Classification

4 THE DOMAIN EUKARYA The Kingdom Protista Read the words in the box. Read the sentences. Fill in each blank with the word that best completes the sentence. protists eukaryotes protozoans algae Eukarya 12. Organisms that have nuclei and cell membranes are called. 13. Single-celled or multicellular organisms that are not fungi, plants, or animals are called. 14. The kingdom Protista contains plantlike organisms called. 15. The kingdom Protista contains animal-like organisms called. 16. The domain is made up of all eukaryotes. The Kingdom Fungi 17. What can plants do that fungi cannot? a. cellular respiration b. fermentation c. photosynthesis d. digestion Holt science and Technology 17 Classification

5 18. Which statement about fungi is true? a. They reproduce using spores. b. They can move. c. They eat food. d. Wild fungi are always safe to eat. 19. Where do fungi get their nutrients? a. from the air b. from the sun c. from their surroundings d. from energy 20. How do fungi obtain nutrients? a. They digest and absorb them. b. They chew and swallow them. c. They produce them. d. They capture and eat them. The Kingdom Plantae 21. What kind of eukaryotic organisms have cell walls and make their own food? a. animals b. plants c. Archaea d. fungi 22. What does most life on Earth depend on? a. plants b. protists c. fungi d. animals Holt science and Technology 18 Classification

6 23. What must plants be exposed to for photosynthesis to occur? a. rainwater b. food c. sunlight d. animals 24. What do plants provide for many other organisms? a. fungi b. protozoa c. sunlight d. a place to live The Kingdom Animalia 25. What characteristics do most members of kingdom Animalia have? a. They are unicellular and green. b. They have cell walls. c. They are multicellular and can move. d. They have feathers or hair. 26. What do sense organs allow animals to do? a. to digest their food b. to respond to their environment c. to grow d. to rest 27. What do animals depend on bacteria and fungi for? a. to recycle nutrients in the environment b. to supply chlorophyll c. to eat d. to use sunlight Holt science and Technology 19 Classification

7 STRANGE ORGANISMS 28. Which of these is an example of a very simple animal that has no sense organs? a. tortoise b. beetle c. sponge d. bird Holt science and Technology 20 Classification

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