27. Protists

Which of the following organisms is commercially harvested to extract algin from their cell walls?

__________ is a protist that causes late blight of potatoes and was responsible for the Irish potato famine of the 19th century.

Which of the following is the eukaryotic supergroup that contains fungi and animals?

Protists that move via extension of pseudopodia are members of which eukaryotic supergroup?

What is the purpose of the "floats" in some brown algae?

Which of these groups includes parasitic unicellular organisms with a complex of organelles specialized for penetrating host cells and tissues?

Which organisms are capable of producing a "red tide"?

Apicomplexans are currently assigned to the SAR clade because __________.

Many species of red algae are adapted to deeper water due to the fact that __________.

Which of the following groups of algae is/are most closely related to land plants?

Which of the following is one of the main weaknesses of the proposed classification scheme in which all eukaryotes are divided into four supergroups?

In lab class, a plasmodial slime mold is used as a demonstration organism. One of the students does not understand why this organism is not considered multicellular. How would you explain it to her?

Which of these groups is characterized by cells that have more than one nucleus?

How do trypanosomes withstand the attack of a host's immune system?