WSU BIOLOGY 106 EXAM 2 REVIEW
2026 VERIFIED QUESTIONS WITH
CORRECT ANSWERS
◉ What new (derived) key traits have land plants evolved that they don't
have in common with the Charophyceae?.
Answer: Apical meristems, alternation of generations, walled spores
produced in sporangia, multicellular gametangia, and multicellular
dependent embryos
◉ What does alternation of generations means?.
Answer: A life cycle in which there is both multicellular diploid form,
the sporophyte, an a multicellular haploid form, the gametophyte;
characteristic of plants and some algae
◉ What is the difference between a gametophyte and a sporophyte?
a. Gametophytes are in general the larger generation when compared to
sporophytes
b. Sporophytes are always unicellular, while the gametophyte always
forms a tissue
c. The gametophyte represents a multicellular, haploid phase, while the
sporophyte is a multicellular, diploid phase
d. two of the above.
Answer: c. The gametophyte represents a multicellular, haploid phase,
while the sporophyte is a multicellular, diploid phase
,◉ What are the three phyla of the Bryophytes?
a. Hornports, Anthocerophyta, Mosses
b. Lycophyta, Hepatophyta, Bryophyta
c. Liverworts, Mosses, Hornworts
d. Hornworts, Psilotum, Hepatophyta.
Answer: c. Liverworts, Mosses, Hornworts
◉ In what way differ the gametophyte-sporophyte relationships when
you compare the mosses and other non-vascular plants with the ferns
and other seedless vascular plants?.
Answer: Sporophytes of seedless vascular plants are the larger
generation (as the familiar leafy fern) and the gametophytes are tiny
plants that grow on or below the soil surface
◉ What are key developmental features that make ferns and other
seedless vascular plants distinct from bryophytes?
a. vascular tissue, leaves, roots
b. apical meristems, leaves, flagellated sperm cells
c. alternation of generation, roots, flowers
d. gametophytes, embryos, flagellated sperm cells.
Answer: a. vascular tissue, leaves, roots
◉ What are the two phyla of seedless vascular plants and what are the
main groups within these two phyla?.
,Answer: Lycophyta (including club mosses, spike mosses, and
quillworts) and pterophyte (including ferns, horsetails, and whisk ferns
and their relatives)
◉ Which of the following were probably not factors that permitted early
plants to successfully colonize land?
1. the limited number of potential predators (herbivores)
2. The atmosphere's relative lack of support and water preservation,
compared to a watery environment
3. the availability of symbiotic partners
4. the limited number of competitors
a. 1 and 2
b. 2 and 3
c. 3 and 4
d. 1,2, and 3
e. 1,2, and 4.
Answer: b. 2 and 3
◉ You find a green, plant-like looking organism in a lake. You have a
microscope and can carefully analyze it. What criteria would point out
that you exclude it is a green algae you investigate?
1. after cell division, a phragmoplast
2. you find multicellular dependent embryos
, 3. the plasma membrane contains rings of cellulose-synthesizing
complexes
4. the organism has multicellular gametangia
a. 1+2
b. 2+3
c. 3+4
d. 1 +4
e. 2+4.
Answer: e. 2+4
◉ a sporangium is normally?
a. haploid
b. diploid
c. zygoid.
Answer: b. diploid
◉ What does the term heterospory means?.
Answer: Production of spores of two different sizes and sexes by the
sporophytes of land plants
◉ What defines an ovule?
a. It comprises a female gametophyte, a microsporophyte, and a seed
b. It comprises a megasporangium, megaspore, and their integuments
2026 VERIFIED QUESTIONS WITH
CORRECT ANSWERS
◉ What new (derived) key traits have land plants evolved that they don't
have in common with the Charophyceae?.
Answer: Apical meristems, alternation of generations, walled spores
produced in sporangia, multicellular gametangia, and multicellular
dependent embryos
◉ What does alternation of generations means?.
Answer: A life cycle in which there is both multicellular diploid form,
the sporophyte, an a multicellular haploid form, the gametophyte;
characteristic of plants and some algae
◉ What is the difference between a gametophyte and a sporophyte?
a. Gametophytes are in general the larger generation when compared to
sporophytes
b. Sporophytes are always unicellular, while the gametophyte always
forms a tissue
c. The gametophyte represents a multicellular, haploid phase, while the
sporophyte is a multicellular, diploid phase
d. two of the above.
Answer: c. The gametophyte represents a multicellular, haploid phase,
while the sporophyte is a multicellular, diploid phase
,◉ What are the three phyla of the Bryophytes?
a. Hornports, Anthocerophyta, Mosses
b. Lycophyta, Hepatophyta, Bryophyta
c. Liverworts, Mosses, Hornworts
d. Hornworts, Psilotum, Hepatophyta.
Answer: c. Liverworts, Mosses, Hornworts
◉ In what way differ the gametophyte-sporophyte relationships when
you compare the mosses and other non-vascular plants with the ferns
and other seedless vascular plants?.
Answer: Sporophytes of seedless vascular plants are the larger
generation (as the familiar leafy fern) and the gametophytes are tiny
plants that grow on or below the soil surface
◉ What are key developmental features that make ferns and other
seedless vascular plants distinct from bryophytes?
a. vascular tissue, leaves, roots
b. apical meristems, leaves, flagellated sperm cells
c. alternation of generation, roots, flowers
d. gametophytes, embryos, flagellated sperm cells.
Answer: a. vascular tissue, leaves, roots
◉ What are the two phyla of seedless vascular plants and what are the
main groups within these two phyla?.
,Answer: Lycophyta (including club mosses, spike mosses, and
quillworts) and pterophyte (including ferns, horsetails, and whisk ferns
and their relatives)
◉ Which of the following were probably not factors that permitted early
plants to successfully colonize land?
1. the limited number of potential predators (herbivores)
2. The atmosphere's relative lack of support and water preservation,
compared to a watery environment
3. the availability of symbiotic partners
4. the limited number of competitors
a. 1 and 2
b. 2 and 3
c. 3 and 4
d. 1,2, and 3
e. 1,2, and 4.
Answer: b. 2 and 3
◉ You find a green, plant-like looking organism in a lake. You have a
microscope and can carefully analyze it. What criteria would point out
that you exclude it is a green algae you investigate?
1. after cell division, a phragmoplast
2. you find multicellular dependent embryos
, 3. the plasma membrane contains rings of cellulose-synthesizing
complexes
4. the organism has multicellular gametangia
a. 1+2
b. 2+3
c. 3+4
d. 1 +4
e. 2+4.
Answer: e. 2+4
◉ a sporangium is normally?
a. haploid
b. diploid
c. zygoid.
Answer: b. diploid
◉ What does the term heterospory means?.
Answer: Production of spores of two different sizes and sexes by the
sporophytes of land plants
◉ What defines an ovule?
a. It comprises a female gametophyte, a microsporophyte, and a seed
b. It comprises a megasporangium, megaspore, and their integuments
