True and False Questions
In mosses, the sporophyte is in many instances nutritionally dependent on the gametophyte.
A monoecious moss can produce antheridia and archegonia on the same individual.
Although they are similar in many ways, bryophytes and green algae differ sharply in their types of photosynthetic pigments.
The woody portion in the stems of trees is xylem.
Some extinct ferns are known to have been seed plants.
The greatest number of conifers is found in tropical regions of the earth.
One hypothesis links the emergence of and proliferation of angiosperms on earth to global climatic changes.
Multiple Choice Questions - Choose the best available answer.
Which of the below best characterizes the alternation of generations typical of plants?
a) alternation of a diploid gametophyte with a haploid sporophyte
b) alternation of a multicellular gametophyte with a single-celled sporophyte
c) alternation of a haploid gametophyte with a diploid sporophyte
d) alternation of a single-celled gametophyte with a multicellular sporophyte
The conspicuous green organism that is typically considered to be a moss is
a) a vascular sporophyte
b) a non-vascular gametophyte
c) a vascular gametophyte
d) a non-vascular sporophyte
The majority of bryophytes are
A moss sporophyte can be recognized because it is
a) diploid and nutritionally dependent on the gametophyte
b) diploid and able to live independently, since it is photosynthetic
c) haploid and nutritionally dependent on the gametophyte
d) haploid and able to live independently, since it is photosynthetic
The trachaeophytes have special tissue for transport; the vascular elements are
a) xylem for food and phloem for water
b) phloem for food and xylem for water
c) xylem and phloem, each transporting both food and water
d) xylem and phloem for water and tracheids for food
Fern spores are typically produced in
A typical pollen grain of a seed plant might contain
a) male and female gametophytes
b) a microspore mother cell
c) a generative cell and a tube cell
d) a megaspore and two sperm cells
The structure called a fruit in flowering plants typically originates as a(an)
Which of the following combinations is thought to illustrate the primitive condition in flowering plants?
a) flower regular, complete, and perfect
b) carpels inferior and fused
c) petals separate, with bilateral symmetry
d) floral parts arranged in spirals, with few fused stamens
Which of the following phyla is the most closely related to the Mollusca?
The radula is present in some mollusks and not others. Think about which groups have the radula and then choose the best prediction.
a) The radula is probably a specialization of only the most advanced mollusks.
b) The radula appeared late in the evolution of the phylum.
c) The radula evolved independently in several lines of mollusks.
d) The radula evolved because the mollusks needed to eat more efficiently.
e) The radula evolved early in the evolution of mollusks but was lost in some groups.