Algae
Where do algae live?
They live in aquatic ecosystems.
What type of cells are protozoa?
Unicellular, eukaryotic
What is the only life process that viruses can fulfill?
Reproduction
What are the three types of algae?
Green algae, red algae, and brown algae.
Why are algae not considered plants?
They don't have real tissues.
How do protozoa move?
With cilia, flagella, or pseudopods
Why are viruses not considered living things?
They do not make or use food, change, or interact with the environment.
How do algae and protozoa reproduce?
Asexually (binary fusion)
How do unicellular algae move in aquatic environments?
Some float freely, while others move using flagella.
Name the three types of relationships that protozoa typically have.
Saprophytic, parasitic, and symbiotic
How do viruses reproduce?
They attach to a living cell, force it to make copies of the virus, and then cause the cell to burst, releasing new viruses.
What organism causes malaria?
Protozoa (of genus Plasmodium)
What are the three main characteristics of algae?
They can be unicellular or multicellular.
They have eukaryotic cells.
They are autotrophic.
What are three ways to prevent diseases caused by parasitic protozoa?
Drink only safe water, use insect nets and repellents, and wash fruits and vegetables before eating.
Name two diseases caused by viruses.
Flu, chickenpox, hepatitis, etc.
Which microorganism can only reproduce inside a living cell?
Viruses
Why are algae necessary for aquatic environments?
They create the food and oxygen that heterotrophic beings need to live.
What do free-living protozoa do?
In water, they are part of zooplankton and serve as food for small fish.
On land, they help decompose organic matter.
What happens to a cell after it is full of copies of a virus?
It bursts, releasing the new viruses to infect other cells.
Name one disease caused by protozoa and one disease caused by viruses.
Protozoa: Malaria, dysentery, or sleeping sickness.
Virus: Flu, chickenpox, or hepatitis.