Chapter 20

All flagellated protozoans \(_______\) a. Lack mitochondria c. live as single cells b. are photosynthetic d. cause disease

Deposits of shells from ancient \(__________\)are mined as chalk and limestone. a. dinoflagellates c. radiolaria b. diatoms d. foraminifera

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

An insect bite can transmit a malaria-causing ______ to a human host. a. trypanosome c ciliate b. apicomplexan d. diplomonad

_________are the closest relatives of the land plants. a. Green algae c. Brown algae b. Red algae d. Euglenoids

Accessory pigments of ________ allow them to carry out photosynthesis at greater depths than other algae. a. euglenoids c. brown algae b. green algae d. red algae

The most common bioluminescent protists in tropical seas are ________ a. red algae b. diatoms c. dinoflagellates d. radiolaria

The \(______\) are important plant pathogens. a. dinoflagellates c. water molds b. ciliates d. slime molds