the two clades of the protostomes? a. Eumetazoa and Metazoa b. Protostomia and B
ID: 270625 • Letter: T
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the two clades of the protostomes? a. Eumetazoa and Metazoa b. Protostomia and Bilateria c. Bilateria and Deutersostomia d. Lophotrochozoa and Ecdysozoa e. Lophotrochozoa and Deutrerostomia 45. A is a filament that makes up the vegetative a. fruiting body b. protonema e. thallus d. hypha e septum 46. Flowering plants appeared in the fossil record in the a. Tertiary period. b. Cenozoic era. c. Paleozoic era. d. Late Cretaceous period. e. Jurassic and Lower Cretaceous periods. 47. How is the pollen of pine trees primarily disseminated? a. birds wind c. water d. insects e. mammals 48. What do the xylem and phloem make up of in a plant? a. root system b. vascular tissue c. reproductive structures d. transpiration control centers e. photosynthesis control centers 49. The common ancestor of all animals is/are the: a. yeast. b. rotifers. c. sponges. d. bacteria. e. choanoflagellates. nCengage Learning. Powered by CogneroExplanation / Answer
ANSWER 44:
Option D - Lophotrochozoa which consist of the Platyhelminthes and the Ecdysozoa which consists of the roundworms
ANSWER 45:
Option D - Hypha which is a thread like structure
ANSWER 46:
Option E - Jurassic and the lower Cretaceous period. This was about 130 million years ago when the angiosperms appeared.
ANSWER 47:
Option B - Wind
ANSWER 48:
Option B - Vascular tissues. One xylem and one phloem in a plant compose one vascular bundle. There are many such vascular bundles in the plant for transport of water, nutrients and the food.
ANSWER 49:
Option D - Bacteria
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