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Table of contents

1. Introduction to Biology2h 2m
2. Chemistry1h 46m
3. Water1h 0m
4. Biomolecules1h 51m
5. Cell Components1h 56m
6. The Membrane1h 51m
7. Energy and Metabolism1h 24m
8. Respiration2h 0m
9. Photosynthesis2h 13m
10. Cell Signaling35m
11. Cell Division1h 38m
12. Meiosis1h 14m
13. Mendelian Genetics2h 56m
14. DNA Synthesis1h 32m
15. Gene Expression2h 3m
16. Regulation of Expression2h 19m
17. Viruses37m
- Viruses37m
18. Biotechnology1h 58m
19. Genomics17m
- Genomes17m
20. Development1h 5m
21. Evolution by Natural Selection22m
- Descent with Modification22m
22. Evolution of Populations31m
- Hardy-Weinberg Model11m
- Genetic Variation19m
23. Speciation12m
- Species12m
24. History of Life on Earth23m
- History of Life on Earth23m
25. Phylogeny41m
- Phylogeny41m
26. Prokaryotes1h 5m
27. Protists1h 6m
28. Plants1h 22m
29. Fungi36m
- Fungi19m
- Fungi Reproduction17m
30. Overview of Animals34m
- Overview of Animals34m
31. Invertebrates1h 2m
32. Vertebrates50m
33. Plant Anatomy1h 3m
34. Vascular Plant Transport1h 2m
- Water Potential1m
35. Soil37m
- Soil and Nutrients20m
- Nitrogen Fixation16m
36. Plant Reproduction47m
- Flowers33m
- Seeds14m
37. Plant Sensation and Response1h 10m
38. Animal Form and Function1h 19m
39. Digestive System1h 10m
- Digestion1m
- Blood Sugar Homeostasis7m
40. Circulatory System1h 57m
41. Immune System1h 24m
42. Osmoregulation and Excretion50m
- Osmoregulation and Excretion50m
43. Endocrine System1h 4m
- Endocrine System1m
44. Animal Reproduction1h 2m
- Animal Reproduction1m
45. Nervous System1h 55m
- Neurons and Action Potentials1m
- Central and Peripheral Nervous System46m
46. Sensory Systems46m
- Sensory System46m
47. Muscle Systems23m
- Musculoskeletal System23m
48. Ecology1h 24m
- Ecology1m
49. Animal Behavior28m
- Animal Behavior28m
50. Population Ecology35m
- Population Ecology35m
51. Community Ecology38m
- Community Interactions20m
- Community Structure17m
52. Ecosystems28m
- Ecosystems28m
53. Conservation Biology24m
- Conservation Biology24m

27. Protists

Protist Life Cycles

General Biology27. ProtistsProtist Life Cycles

Multiple Choice

Multiple Choice

Alternation of generations __________.

A

is unique to plants

B

is distinguished by a unicellular haploid stage and a multicellular diploid generation

C

consists of a diploid gametophyte stage alternating with a haploid sporophyte stage

D

is distinguished by a multicellular haploid generation and a unicellular diploid generation

E

is distinguished by haploid and diploid stages that are both multicellular

303

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