Which of the following best describes a characteristic that distinguishes animals from protists?

a) Most animals are eukaryotes, and most protists are prokaryotes.

b) Most animals have bilateral symmetry, and most protists have radial symmetry.

c) Most animals have cell walls containing proteins, and most protist cell walls contain chitin.

d) Most animals are multicellular, and most protists are unicellular.


The sporophyte of an unknown plant species grows as a separate plant than the gametophyte. The plant produces both female and flagellated male gametes from the same gametophyte, and it releases spores into the environment. Which of the following is the best conclusion about the life cycle of this plant?

a) The plant is a gymnosperm, and the gametophyte is its dominant phase.

b) The plant is an angiosperm, and the gametophyte is its dominant phase.

c) The plant is a moss, and the sporophyte is its dominant phase.

d) The plant is a fern, and sporophyte is its dominant phase.