Choanoflagellates _____
A) are usually parasitic
B) are motile as adults
C) live in aquatic habitats
D) are animals
Answer: C
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Which molecule carries an anticodon?
A. DNA B. mRNA C. rRNA D. tRNA
Which of the following animals use air sacs to ventilate its lungs?
a. humans b. birds c. frogs d. reptiles e. horses
Which of the following is NOT true of
protists?
a. They may reproduce sexually. b. Most have mitochondria. c. Some reproduce asexually by binary fission. d. Most protists are unicellular organisms, but some are multi-celled species. e. Some protists are photoautotrophs
Where would you expect to find the Ca2+-activated form of gelsolin in cells crawling by amoeboid movement?
A) in and around focal adhesions B) at a pseudopodium tip where endoplasm is converting to ectoplasm C) at a pseudopodium base where ectoplasm is converting to endoplasm D) in the primary cilium E) at the cell trailing edge where force is produced to drive endoplasm forward streaming