Characteristics of Living Things Section 1 Characteristics of Living Things Living Things Have Cells What Is a Cell? A cell is a membrane-covered structure that contains all of the materials necessary for life. How Many Cells? Some organisms are made up of only one cell and some are made up of trillions of cells. Header first line (section#) – white 24 points Arial Bold Header second line (title) – white 28 points Arial Bold Title – yellow 28 points Arial Bold Body text – white24 points Arial and Arial Bold Bullets – yellow Copyright – white 12 points Arial Background name: HST-Presentation_blue.jpg, Size: Height: 7.52" Width: 10.02" Scale: 70% Position on slide: Horizontal - 0" Vertical - 0" End of Slide Copyright © by Holt, Rinehart and Winston. All rights reserved.

Characteristics of Living Things Section 1 Characteristics of Living Things Living Things Sense and Respond to Change Homeostasis The maintenance of a stable internal environment is called homeostasis. Responding to External Change Organisms must respond to change in the external environment in order to maintain their homeostasis. Header first line (section#) – white 24 points Arial Bold Header second line (title) – white 28 points Arial Bold Title – yellow 28 points Arial Bold Body text – white24 points Arial and Arial Bold Bullets – yellow Copyright – white 12 points Arial Background name: HST-Presentation_blue.jpg, Size: Height: 7.52" Width: 10.02" Scale: 70% Position on slide: Horizontal - 0" Vertical - 0" End of Slide Copyright © by Holt, Rinehart and Winston. All rights reserved.

Characteristics of Living Things Section 1 Characteristics of Living Things Living Things Reproduce Having Offspring Organisms make other organisms similar to themselves. They do so in one of two ways: by sexual reproduction or by asexual reproduction. Living Things Have DNA Header first line (section#) – white 24 points Arial Bold Header second line (title) – white 28 points Arial Bold Title – yellow 28 points Arial Bold Body text – white24 points Arial and Arial Bold Bullets – yellow Copyright – white 12 points Arial Background name: HST-Presentation_blue.jpg, Size: Height: 7.52" Width: 10.02" Scale: 70% Position on slide: Horizontal - 0" Vertical - 0" DNA in Cells The cells of all living things contain the molecule deoxyribonucleic acid, or DNA. End of Slide Copyright © by Holt, Rinehart and Winston. All rights reserved.

Characteristics of Living Things Section 1 Characteristics of Living Things Living Things Use Energy Energetic Organisms Organisms use energy to carry out the activities of life. Living Things Grow and Develop Header first line (section#) – white 24 points Arial Bold Header second line (title) – white 28 points Arial Bold Title – yellow 28 points Arial Bold Body text – white24 points Arial and Arial Bold Bullets – yellow Copyright – white 12 points Arial Background name: HST-Presentation_blue.jpg, Size: Height: 7.52" Width: 10.02" Scale: 70% Position on slide: Horizontal - 0" Vertical - 0" Growing Up All living things, whether they are made of one cell or many cells, grow during periods of their lives. End of Slide Copyright © by Holt, Rinehart and Winston. All rights reserved.