NC EOG Life Science Review

Front

What is population density in marine life?

Back

Population density refers to the number of organisms living in a specific area, which is denser along shorelines due to more available nutrients.

Front

Why do muscle cells have more mitochondria than skin cells?

Back

Muscle cells have more mitochondria because they require more energy for movement and contraction compared to skin cells.

Front

What evidence supports the theory of evolution?

Back

Fossils provide evidence that vertebrates share a common ancestor, supporting the theory of evolution.

Front

What is an example of nekton?

Back

Dolphins are an example of nekton, which are aquatic animals that can swim freely in the water.

Front

What is the most common plant in a salt marsh?

Back

Cordgrass is the most common plant found in salt marshes.

Front

What role do nutrients play in marine ecosystems?

Back

Nutrients are essential for the growth of marine organisms and are more abundant in shallow waters.

Front

What is the function of mitochondria in cells?

Back

Mitochondria are known as the powerhouse of the cell, providing energy through the process of cellular respiration.

Front

How do ocean currents affect marine life?

Back

Ocean currents can influence the distribution of nutrients and organisms, affecting where marine life thrives.

Front

What is the significance of DNA in evolution?

Back

DNA carries genetic information that is passed down through generations, showing how species evolve over time.

Front

What is the difference between nekton and plankton?

Back

Nekton are free-swimming organisms, while plankton are drifting organisms that cannot swim against currents.