Question

1. what characteristics are common among living things? complete the concept map, then explain each of the 8 characteristics in your own words. 22. why is a virus not considered a living organism? 23. give 3 examples of stimuli that a dog would respond to.

Explanation:

1. Cellular organization: All living things are made of cells, which are the basic unit of life.
2. Growth and development: Living organisms grow in size and develop over time, with changes in their structure and function.
3. Homeostasis: They maintain a stable internal environment, regulating factors like temperature and pH.
4. Heredity: Pass on genetic information to offspring through reproduction, ensuring continuity of traits.
5. Evolutionary adaptation: Over generations, living things adapt to their environment through the process of evolution.

A virus is not considered a living organism because it lacks cellular structure, cannot carry out metabolism on its own (it relies on a host cell for replication and other life - like processes), and does not grow or develop in the same way as cellular organisms.

Examples of stimuli a dog would respond to: food (it may salivate and approach), a command like "sit" (it may perform the action if trained), and the sound of a doorbell (it may bark or go to the door).

Answer:

1. Cellular organization
2. Growth and development
3. Homeostasis
4. Heredity
5. Evolutionary adaptation

A virus is not living as it lacks cellular structure and independent metabolism.

Examples of dog stimuli: food, command, door - bell sound.