Which classification system makes use of multiple levels from domain to species?

1. Which classification system makes use of multiple levels from domain to species? A. Aristotle’s Chain of Being. Linnaean system. Cladistics. D. None of the above.

2. Which classification system makes use of multiple levels from domain to species? A. Aristotle’s Chain of Being. • Linnaean system. • Cladistics. D. None of the above.

3. What is the term for a group that includes an ancestral species and all of its descendants? • Domain. • Kingdom. • Clade. • Genus.

4. What is the term for a group that includes an ancestral species and all of its descendants? • Domain. • Kingdom. • Clade. • Genus.

5. Archaea are • eukaryotes that are not plants, animals, or fungi. • prokaryotes that are more closely related to eukaryotes than bacteria. • multicellular organisms that reproduce sexually. • prokaryotic organisms with a nucleus.

6. Archaea are • eukaryotes that are not plants, animals, or fungi. • prokaryotes that are more closely related to eukaryotes than bacteria. • multicellular organisms that reproduce sexually. • prokaryotic organisms with a nucleus. Explanation: Archaea are a distinct domain of prokaryotic organisms that share certain traits with eukaryotes, such as features of their RNA and ribosomes and the presence of introns in their genes.

7. Which of the following would be classified as a protist? • Kelp. • Sponge. • E. coli. • Moss.

8. Which of the following would be classified as a protist? • Kelp. • Sponge. • E. coli. • Moss. Explanation: Protists are a diverse category of eukaryotes that includes slime molds, kelp, amoebas, and many other organisms.

9. Which category describes an autotrophic, multicellular, terrestrial eukaryote? • Fungus. • Plant. • Animal. • Bacterium.

10. Which category describes an autotrophic, multicellular, terrestrial eukaryote? • Fungus. • Plant. • Animal. • Bacterium. Explanation: Of the groups listed above, only plants are autotrophs (producing their own food) and eukaryotes.

11. Which of the following is a plant gametophyte? • Spore. • Pollen. • Seed. • All of the above.

12. Which of the following is a plant gametophyte? • Spore. • Pollen. • Seed. • All of the above.

13. The stamen of a flower is the ________ reproductive structure. • male • female • haploid • diploid

14. The stamen of a flower is the ________ reproductive structure. • male • female • haploid • diploid

15. Fungi reproduce • sexually. • asexually. • via spores. • all of the above.

16. Fungi reproduce • sexually. • asexually. • via spores. • all of the above. Explanation: Fungi may reproduce either sexually or asexually. However, in either case, the fungus forms spores, which become dormant until conditions are favorable for growth.

17. Most animals • are haploid most of their lives. • appear the same as juveniles as they do as adults. • reproduce sexually. • are autotrophic.

18. Most animals • are haploid most of their lives. • appear the same as juveniles as they do as adults. • reproduce sexually. • are autotrophic.

19. Which type of animal possesses a tube-like structure with a large central cavity, is sedentary, and lacks tissues? • Cnidarians. • Flatworms. • Sponges. • Annelids.

20. Which type of animal possesses a tube-like structure with a large central cavity, is sedentary, and lacks tissues? • Cnidarians. • Flatworms. • Sponges. • Annelids. Explanation: Unlike other animals, sponges lack tissues, which allows them to reassemble if pushed through a sieve.

21. Corals rely on dinoflagellates to • provide nutrients via photosynthesis. • form their calcium carbonate skeletons. • control body temperature. • counteract the impact of global warming.

22. Corals rely on dinoflagellates to • provide nutrients via photosynthesis. • form their calcium carbonate skeletons. • control body temperature. • counteract the impact of global warming.

23. Which type of animal has an external exoskeleton made of chitin, a segmented body, and jointed legs? • Cnidarians. • Annelids. • Arthropods. • Mollusks.

24. Which type of animal has an external exoskeleton made of chitin, a segmented body, and jointed legs? • Cnidarians. • Annelids. • Arthropods. • Mollusks.

25. Why are there no giant insects? • The exoskeleton cannot support a large body structure. • Large insects would rapidly run out of food. • Insects are sized to fit the plants they inhabit. • Insects rely on diffusion to move oxygen to their tissues.

26. Why are there no giant insects? • The exoskeleton cannot support a large body structure. • Large insects would rapidly run out of food. • Insects are sized to fit the plants they inhabit. • Insects rely on diffusion to move oxygen to their tissues. Explanation: Insects rely on trachea, a series of branched tubules connected to the outside air, for oxygen. The oxygen must diffuse through the trachea to reach tissues. Diffusion only works effectively across short distances.

27. Which of the following is not a key feature of the chordates? • An exoskeleton. • A notochord. • A tail. • Gill slits.

28. Which of the following is not a key feature of the chordates? • An exoskeleton. • A notochord. • A tail. • Gill sl.its Explanation: An exoskeleton is an external skeleton, such as insects have. Chordates have internal body skeletons.

29. Why are amphibians such as frogs particularly vulnerable to pollution? • They are both terrestrial and aquatic. • Water and other substances are absorbed through their skin. • They are relatively small animals. • They metamorphose.

30. Why are amphibians such as frogs particularly vulnerable to pollution? • They are both terrestrial and aquatic. • Water and other substances are absorbed through their skin. • They are relatively small animals. • They metamorphose.

31. Birds are most closely related to which of the following? • Bats. • Lungfishes. • Crocodiles. • Snakes.

32. Birds are most closely related to which of the following? • Bats. • Lungfishes. • Crocodiles. • Snakes.

33. Which of the following is an ectotherm? • Finch. • Kangaroo. • Platypus. • Garter snake.

34. Which of the following is an ectotherm? • Finch. • Kangaroo. • Platypus. • Garter snake. Explanation: Only the garter snake is an ectotherm, relying on behavior such as basking to regulate body temperature. Birds and mammals are endotherms that maintain their body temperature by metabolizing food.

35. Why do larger birds have wings that are relatively larger than the wings of smaller birds? • To produce drag necessary for landing. • To counteract the pull of gravity on their larger-volume bodies. • To allow them to hover. • None of the choices.

36. Why do larger birds have wings that are relatively larger than the wings of smaller birds? • To produce drag necessary for landing. • To counteract the pull of gravity on their larger-volume. bodies • To allow them to hover. • None of the choices.

37. What do we call small pieces of genetic material wrapped in a protein coat? • Prions. • Viroids. • Bacteria. • Viruses.

38. What do we call small pieces of genetic material wrapped in a protein coat? • Prions. • Viroids. • Bacteria. • Viruses.