Algae
The algae Chlamydomonas demonstrates a complex life cycle that switches between haploid and diploid forms. This life cycle is called

algal transformation
the sexual-asexual exchange
the transposition cycle
an alternation of generations

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Algae
Which of the following best describes the algae known as diatoms?

Cells contain carotenoid pigments as well as chlorophyll A and B
Cells have intricate shells of silicon dioxide with two halves
Cells have flagella and a light-detecting eye spot
Cells are encased in rigid walls composed of cellulose coated with silicon

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