Exam 7 SC160
Question 1 (5 points)
What characteristic is unique to echinoderms?
Question 1 options:
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| A lack of segmentation |
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| A water vascular system |
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| Suction-cup-like feet |
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| Larvae with bilateral symmetry |
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Rays are a type of:
Question 2 options:
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| tunicate. |
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| cartilaginous fish. |
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| jawless fish. |
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| bony fish. |
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Nearly all __________ are aquatic.
Question 3 options:
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| crustaceans |
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| arachnids |
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| flatworms |
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| roundworms |
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Unique features of vertebrates include the presence of a(n):
Question 4 options:
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| endoskeleton. |
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| notochord. |
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| skull and backbone. |
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| pharyngeal slit. |
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Why are bryophytes considered incompletely liberated from their ancestral aquatic habitat?
Question 5 options:
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| Their embryos do not develop within gametangia. |
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| Their sperm are flagellated. |
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| The gametophyte generation is dominant. |
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| They lack a cuticle. |
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The first hominid to spread beyond Africa was:
Question 6 options:
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| "Lucy". |
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| <i>Australopithecus afarensis.</i> |
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| <i>Homo erectus.</i> |
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| <i>Homo neanderthalensis.</i> |
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How do New World monkeys differ from Old World monkeys?
Question 7 options:
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| New World monkeys have a prehensile tail. |
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| New World monkeys have enhanced depth perception. |
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| Old World monkeys are arboreal. |
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| New World monkeys have nails; Old World monkeys have claws. |
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What important role do fungi play in many ecosystems?
Question 8 options:
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| They decompose organic material. |
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| They pollinate plants. |
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| They disperse the fruits of angiosperms. |
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| They perform photosynthesis |
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The function of a mushroom is to:
Question 9 options:
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| produce seeds. |
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| store nutrients. |
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| produce spores. |
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| absorb food. |
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The mobile stage of the cnidarian life cycle is the __________ stage.
Question 10 options:
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| instar |
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| polyp |
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| tadpole |
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| medusa |
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__________, a chemical that hardens cell walls and supports terrestrial plants, is found in all plants EXCEPT __________.
Question 11 options:
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| Lignin; bryophytes |
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| Cellulose; bryophytes |
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| Calcium carbonate; ferns |
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| Lignin; ferns and bryophytes |
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Like plants, fungi have __________; however, in plants they are composed of __________, whereas in fungi they are composed of __________.
Question 12 options:
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| cell walls; cellulose; chitin |
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| cell walls; cellulose; peptidoglycan |
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| cell membranes; phospholipids; peptidoglycan |
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| cell walls; phospholipids; cellulose |
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Which of these human characteristics evolved first?
Question 13 options:
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| Enlarged brain |
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| Erect posture |
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| Language |
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| Loss of body hair |
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What is this organism?
Question 14 options:
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| Fern |
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| Fungus |
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| Bryophyte |
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| Gymnosperm |
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Which of these adaptations to a terrestrial existence evolved most recently?
Question 15 options:
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| Vascular tissue |
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| Seeds |
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| Gametangia |
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| Cuticle |
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Why are ferns considered incompletely adapted to the terrestrial environment, when compared with other plants?
Question 16 options:
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| They lack vascular tissue. |
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| Their sperm are flagellated. |
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| The gametophyte generation is dominant. |
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| They lack gametangia. |
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A true coelom is:
Question 17 options:
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| completely lined with tissue derived from endoderm. |
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| completely lined with tissue derived from mesoderm. |
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| formed when a zygote develops into a blastula. |
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| completely lined with tissue derived from ectoderm. |
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What are hyphae?
Question 18 options:
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| Symbiotic associations between plant roots and fungi |
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| Threadlike filaments that make up fungal bodies |
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| Fungal reproductive structures |
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| Fungal spores |
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Where did humans first appear?
Question 19 options:
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| South America |
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| Africa |
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| Asia |
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| Europe |
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Annelids are most closely related to:
Question 20 options:
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| chordates. |
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| arthropods. (Incorrect) |
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| molluscs. |
| echinoderms. |
