The Common Sea Lettuce, Ulva Lactuca, Is Said to Have

question 71

Multiple Choice

The common sea lettuce, Ulva lactuca, is said to have an isomorphic life cycle. Which of the following statements about this species is true?

• A) The sporophyte and the gametophyte look virtually identical.
• B) The diploid and haploid stages of the life cycle are morphologically different from each other.
• C) The male and female gametes are different sizes.
• D) All of the above
• E) None of the above

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Definitions:

Years

Units of time equal to 365 days (or 366 days in a leap year), used to measure the passage of time.

Black Plague

A devastating global epidemic of bubonic plague that struck Europe and Asia in the mid-14th century, killing millions.

Pope Clemens VI

A 14th-century pontiff of the Catholic Church, known for his efforts to protect Jews during the Black Death and his patronage of the arts.

Pure Air

Clean and uncontaminated air, free from pollutants and harmful substances.