This document discusses the organization of cells and tissues in multicellular organisms. It explains that cells differentiate and organize into four basic tissue types - epithelial, connective, muscular and nervous tissues. These tissues then combine to form organs, which work together in organ systems. Homeostasis refers to the process by which the body maintains optimal conditions for cells through feedback mechanisms. Key examples given are regulation of blood pressure and fluid balance between body compartments.

1. cell organisation Hasimah bt Azit

2. unicellular organism

6. multicell organism They have a lot of cells !!

10. The Origin of Tissues Morula Blastula Gastrula Differentiate between primary tissues and embryonic germ layers.

16. What are the three major cell types often found in connective tissues, and what are their functions? Areolar c.t.

18. Bones

19. Blood

20. Muscle

22. Cardiac Muscle

23. Skeletal Muscle

24. Smooth Muscle

25. Nervous tissues

30. cell organisation in plant

34. Meristematic tissues

35. Root Apical Meristem

36. Epidermal

38. Ground tissue Parenchyma Collenchyma Sclerenchyma

44. Organs

45. Systems

46. Regulating internal environment By Hasimah Azit

47. The Boundary Organ Concept

52. How is this (homeostasis) controlled?

53. feedback process . positive : >> increase >> increase . Negative: >> increase >>> decrease

57. Uniqueness of cells