Questions: If you observed a newly discovered 'thing' and tried to decide if it might be alive, what would be the weakest distinction for that a. structural organization b. movement c. energy use d. evolution e. homeostasis

The answer is the second one (B): movement.

Explanation for each option:

a. Structural organization: This is a strong criterion for determining if something is alive. Living organisms typically have a complex and organized structure, from cellular to systemic levels.

b. Movement: This is the weakest distinction for determining if something is alive. Not all living organisms exhibit movement, especially in the traditional sense. For example, plants and many microorganisms do not move in the way animals do, yet they are alive.

c. Energy use: This is a strong criterion. All living organisms require energy to maintain their internal order, grow, reproduce, and respond to their environment.

d. Evolution: This is a strong criterion. The ability to evolve over generations is a fundamental characteristic of life. Living organisms undergo genetic changes that can be passed on to their offspring.

e. Homeostasis: This is a strong criterion. Living organisms maintain a stable internal environment despite changes in external conditions, which is essential for their survival.

Summary: Movement is the weakest distinction for determining if something is alive because not all living organisms exhibit movement. Other criteria such as structural organization, energy use, evolution, and homeostasis are more reliable indicators of life.