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1. Introduction to Biology(0)
2. Chemistry(0)
3. Water(0)
4. Biomolecules(0)
5. Cell Components(0)
6. The Membrane(0)
7. Energy and Metabolism(0)
8. Respiration(0)
9. Photosynthesis(0)
10. Cell Signaling(0)
11. Cell Division(0)
12. Meiosis(0)
13. Mendelian Genetics(0)
14. DNA Synthesis(0)
15. Gene Expression(0)
16. Regulation of Expression(0)
17. Viruses(0)
- Viruses
  (0)
18. Biotechnology(0)
19. Genomics(0)
- Genomes
  (0)
20. Development(0)
21. Evolution(0)
22. Evolution of Populations(0)
- Hardy-Weinberg Model
  (0)
- Genetic Variation
  (0)
23. Speciation(0)
- Species
  (0)
24. History of Life on Earth(0)
- History of Life on Earth
  (0)
25. Phylogeny(0)
- Phylogeny
  (0)
26. Prokaryotes(0)
27. Protists(0)
28. Plants(0)
29. Fungi(0)
- Fungi
  (0)
- Fungi Reproduction
  (0)
30. Overview of Animals(0)
- Overview of Animals
  (0)
31. Invertebrates(0)
32. Vertebrates(0)
33. Plant Anatomy(0)
34. Vascular Plant Transport(0)
- Water Potential
  (0)
35. Soil(0)
- Soil and Nutrients
  (0)
- Nitrogen Fixation
  (0)
36. Plant Reproduction(0)
- Flowers
  (0)
- Seeds
  (0)
37. Plant Sensation and Response(0)
38. Animal Form and Function(0)
39. Digestive System(0)
- Digestion
  (0)
- Blood Sugar Homeostasis
  (0)
40. Circulatory System(0)
41. Immune System(0)
42. Osmoregulation and Excretion(0)
- Osmoregulation and Excretion
  (0)
43. Endocrine System(0)
- Endocrine System
  (0)
44. Animal Reproduction(0)
- Animal Reproduction
  (0)
45. Nervous System(0)
- Neurons and Action Potentials
  (0)
- Central and Peripheral Nervous System
  (0)
46. Sensory Systems(0)
- Sensory System
  (0)
47. Muscle Systems(0)
- Musculoskeletal System
  (0)
48. Ecology(0)
49. Animal Behavior(0)
- Animal Behavior
  (0)
50. Population Ecology(0)
- Population Ecology
  (0)
51. Community Ecology(0)
- Community Interactions
  (0)
- Community Structure
  (0)
52. Ecosystems(0)
- Ecosystems
  (0)
53. Conservation Biology(0)
- Conservation Biology
  (0)

2. Chemistry

Atoms- Smallest Unit of Matter

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2. Chemistry

Atoms- Smallest Unit of Matter

7PRACTICE PROBLEM

Which of the following appropriately represents the subatomic particles in the given image of an atom?

ANSWERS OPTIONS

A

A - electron, B - proton, C - neutron

B

A - proton, B - neutron, C - electron

C

A - neutron, B - electron, C - neutron

D

A- electron, B - neutron, C - proton

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