More cards in this set

What are all organisms ultimately dependent on?

In photosynthesis, where is the plant's energy from the sun stored?

When is energy transferred between organisms in an ecosystem?

What is the equation for energy efficiency?

What limits the length of a food chain?

How is nitrogen recycled through the environment? ( the nitrogen cycle )

Why are microorganisms important in the carbon cycle?

How can environmental changes be measured?

When did life on Earth begin?

What is variation?