ISA Practice

Front

What is an analog signal?

Back

An analog signal is a continuous signal that represents physical measurements. It can take on any value within a range and is often used to transmit information such as sound, light, and temperature.

Front

What is a digital signal?

Back

A digital signal is a discrete signal that represents data as a sequence of separate values, typically in binary form (0s and 1s). It is used to transmit information in a more precise and reliable manner than analog signals.

Front

What is the main difference between analog and digital signals?

Back

The main difference is that analog signals are continuous and can take any value, while digital signals are discrete and represent data in binary form.

Front

What are adaptations in organisms?

Back

Adaptations are traits or characteristics that have evolved in organisms to help them survive and reproduce in their specific environments.

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on their physical or genetic characteristics.

Front

What does it mean if two organisms have similar anatomical structures?

Back

It often indicates that the organisms share a common ancestor and have a close evolutionary relationship.

Front

What is climate change?

Back

Climate change refers to significant changes in global temperatures and weather patterns over time, primarily caused by human activities such as burning fossil fuels.

Front

How do rising temperatures affect glaciers?

Back

Rising temperatures cause glaciers to melt, leading to a decrease in their mass over time.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural forces such as wind and water.

Front

What is a constraint in design?

Back

A constraint is a limitation or restriction that affects the design process, such as time, resources, or environmental factors.