Science TN Ready Review

Front

What types of organisms lived during the time period represented by layer B?

Back

Only shells, ammonites, and fish lived during this time period.

Front

How does genetic evidence support the idea of a common ancestor for all life on Earth?

Back

DNA reveals how species are related and shows their shared genetic code.

Front

What is one way to increase the strength of an electromagnet's field?

Back

Using a stronger ferromagnetic material for the core.

Front

What did Darwin conclude about the relationship between organisms on the Galapagos Islands and those on the mainland?

Back

A small number of different plant and animal species had come to the mainland from the Galapagos Islands.

Front

What does it mean if a car's acceleration is negative but its velocity is positive?

Back

The car is slowing down while moving in the positive direction.

Front

What is the definition of a ferromagnetic material?

Back

A material that can be magnetized and is attracted to magnets.

Front

What is the significance of DNA in understanding evolution?

Back

DNA provides evidence of how species are related and their evolutionary history.

Front

What is the role of embryonic development in supporting the theory of common ancestry?

Back

Similar embryonic development in different species indicates a shared evolutionary origin.

Front

How does the number of loops in a solenoid affect its magnetic field strength?

Back

Increasing the number of loops increases the strength of the magnetic field.

Front

What is the principle of natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.