Lesson 1.5 Makeup Quiz

What is typically the limiting factor for population growth of phytoplankton? (hint: with Eutrophication there is an abundance of this.)

• Water

• Nutrients

• Sunlight

• Predation

What is Hypoxia?

• High Oxygen

• Low Nitrogen

• Low Oxygen

• High Carbon

What is a cause of eutrophication?

• Too much Nitrogen and Oxygen

• Too much Nitrogen and Phosphorus

• Too much Nitrogen and Carbon

• Too much Nitrogen and Aluminum

Reorder the following

• Decomposition

• Hypoxia

• Excess Nutrients

• Algae Bloom

• Dead Animals

Why would hypoxia be bad for animals?

• It is poisonous to their livers

• They will get more mutations in their DNA

• It can stop them from reproducing.

• Animals need Oxygen for Cellular Respiration

Nitrogen is found in...

• Carbohydrates

• Lipids

• Proteins

• Sugars

Phosphorus is found in...

• Carbohydrates

• Nucleic Acids

• Lipids

• Proteins

Match the following

• Breaking down of substances by microorganisms

• Algae & Phytoplankton

• Nutrients

• Nitrogen & Phosphorus

• Excess nutrients causing algal growth and hypoxia

• Hypoxia

• Photosynthetic Organisms

• Eutrophication

• Low Oxygen

• Decomposition

This map shows a...

• Dead Zone

• Hurricane

• Red Tide

• Tidal Current

What happens to plants at the bottom of a lake that has a dense algal bloom?

• They die because they lack oxygen

• They thrive

• They die because they cannot recieve sunlight.

• They produce excess nitrogen and phosphorus