Oscillatoria is a thread-shaped Cyanobacteria, while Spirogyra is a thread-shaped Protist. Make a table the difference!

Protists with the capabilities to absorb nutrients from dead organisms are called ______. a. photoautotrophs b. autotrophs c. saprobes d. heterotrophs

The presence of a contractile vacuole indicates that a single-celled protist _______. a. is marine c. is photosynthetic b. lives in fresh water d. secretes a toxin

Bacteria that cause the disease typhus arc close relatives of bacteria that evolved into __________. a. protists b. protocells c. chioroplasts d. mitochondria

A marine biologist analyzing water samples notices a protist with a calcium carbonate shell that moves by pseudopodia extension. The protist is likely to be closely related to which species? Fuligo septica (Dog Vomit slime mold) Circogonia icosahedra (Radiolarian) Eugiena viridis Ammonia tepida

Which of these protists is believed to have evolved following a secondary endosymbiosis? green algae cyanobacteria red algae chlorarachniophytes

The group Diplomonadida is characterized by: a. a mouthlike gullet and hairlike surface. Paramecium is anexample. b. flagella and a lack of mitochondria. Giardia is an example. c. nonmotility, parasitism, and sporelike infective stages. Toxoplasma is an example. d. switching between autotrophic and heterotrophic lifestyles. Euglena is an example. e. large protein deposits and movement by two flagella, which are part of an undulating membrane. Trypanosoma is an example.

Which of the following is a characteristic of protists that is also found in at least one other group? a. division by binary fission b. multicellular structures c. complex developmental stages d. peptidoglycan cell walls e. organelles and reproduction by meiosis/mitosis

______ are members or the phytoplankton. a. Water molds b. Diatoms c. Giant kelps d. Cellular slime molds

A high concentration of oil helps _______ stay afloat and makes them useful in biofuel production. a. foraminiferans c. dinoflagellates b. radiolarians d. diatoms