BRAINLIESTT
List and define four types of scientific models.

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.

1. Physical models: smaller and simpler representations of the thing being studied. Eg. A globe or a map is a physical model of a portion or all of Earth.

2. Conceptual models: ties together many ideas to explain a phenomenon or event.

3. Mathematical models: sets of equations that take into account many factors to represent a phenomenon. Mathematical models are often done on computers.

4.  Mental models: personal and internal representations of external reality that people use to interact with the world around them. They are constructed by individuals based on their unique life experiences, perceptions, and understandings of the world.

amber has allowed scientists to study dna that has been preserved over millions of years.

the cell cycle is the final answer! : )