Bio 112 Exam - Questions With Detailed Solutions
The charophycean ____ are probably the ancestors of plants. Right Ans -
algae
The most primitive land plants are ____ which evolved about ____ million years
ago. Right Ans - bryophytes ... 475
Which of the following is an example of a nonvascular plant? Right Ans -
hornwort
____ are vascular plants that produce "naked" seeds. Right Ans -
Gymnosperms
Plants undergo alternation of generations in which ____. Right Ans - the
sporophyte generation alternates with the gametophyte generation
Which is a key difference between alternation of generations in plants and
sexual reproduction in non-plant organisms? Right Ans - In plants, the
haploid and diploid stages are both multicellular.
The development of the _____ prevents plants from drying out and protects
them from microbes. Right Ans - cuticle
Which example below is NOT a clade of vascular plants? Right Ans -
bryophyta
When you see a green "leafy" true moss, you are looking at the _____. Right
Ans - gametophyte generation
How are gametes produced by plants? Right Ans - by mitosis of
gametophyte cells
What structures allow plants to readily take up carbon dioxide from the
atmosphere? Right Ans - stomata
Gymnosperms and angiosperms have the following in common except ____.
Right Ans - ovaries
, Which of the gymnosperm phyla thrived during the Age of Dinosaurs and are
characterized by large cones and fern-like (or palm-like) leaves? Right Ans
- Cycadophyta
What significant change occurred on Earth between the Carboniferous period
and the Permian that most likely contributed to the success of the
gymnosperms? Right Ans - the climate became drier
Which of the following is a land plant that has flagellated sperm and a
sporophyte-dominated life cycle? Right Ans - fern
Which of the following characteristics of plants is absent in their closest living
relatives? Right Ans - alternation of generations
Which of the following characterizes eudicots? Right Ans - two cotyledons,
branched netlike veins, taproot usually present
The largest phylum of gymnosperms is the ____. Right Ans - Coniferophyta
The ____ are vascular plants with flowers and protected seeds. Right Ans -
Anthophyta
90% of extant plant species are ____. Right Ans - angiosperms
Which of the following is NOT a phylum of nonvascular plants? Right Ans -
Lycophyta
The first seed plants likely evolved about ____ million years ago. The closest
living relatives of extinct seed plants are the extant ____. Right Ans - 360 ...
Pterophytes
The ____ were the dominant plants during the Carboniferous and their death
formed vast coal deposits that humans utilize today. Right Ans - seedless
vascular plants
Multicellular gametangia ____. Right Ans - enclose and protect egg cells
A fern is a(n) ____. Right Ans - seedless vascular plant
The charophycean ____ are probably the ancestors of plants. Right Ans -
algae
The most primitive land plants are ____ which evolved about ____ million years
ago. Right Ans - bryophytes ... 475
Which of the following is an example of a nonvascular plant? Right Ans -
hornwort
____ are vascular plants that produce "naked" seeds. Right Ans -
Gymnosperms
Plants undergo alternation of generations in which ____. Right Ans - the
sporophyte generation alternates with the gametophyte generation
Which is a key difference between alternation of generations in plants and
sexual reproduction in non-plant organisms? Right Ans - In plants, the
haploid and diploid stages are both multicellular.
The development of the _____ prevents plants from drying out and protects
them from microbes. Right Ans - cuticle
Which example below is NOT a clade of vascular plants? Right Ans -
bryophyta
When you see a green "leafy" true moss, you are looking at the _____. Right
Ans - gametophyte generation
How are gametes produced by plants? Right Ans - by mitosis of
gametophyte cells
What structures allow plants to readily take up carbon dioxide from the
atmosphere? Right Ans - stomata
Gymnosperms and angiosperms have the following in common except ____.
Right Ans - ovaries
, Which of the gymnosperm phyla thrived during the Age of Dinosaurs and are
characterized by large cones and fern-like (or palm-like) leaves? Right Ans
- Cycadophyta
What significant change occurred on Earth between the Carboniferous period
and the Permian that most likely contributed to the success of the
gymnosperms? Right Ans - the climate became drier
Which of the following is a land plant that has flagellated sperm and a
sporophyte-dominated life cycle? Right Ans - fern
Which of the following characteristics of plants is absent in their closest living
relatives? Right Ans - alternation of generations
Which of the following characterizes eudicots? Right Ans - two cotyledons,
branched netlike veins, taproot usually present
The largest phylum of gymnosperms is the ____. Right Ans - Coniferophyta
The ____ are vascular plants with flowers and protected seeds. Right Ans -
Anthophyta
90% of extant plant species are ____. Right Ans - angiosperms
Which of the following is NOT a phylum of nonvascular plants? Right Ans -
Lycophyta
The first seed plants likely evolved about ____ million years ago. The closest
living relatives of extinct seed plants are the extant ____. Right Ans - 360 ...
Pterophytes
The ____ were the dominant plants during the Carboniferous and their death
formed vast coal deposits that humans utilize today. Right Ans - seedless
vascular plants
Multicellular gametangia ____. Right Ans - enclose and protect egg cells
A fern is a(n) ____. Right Ans - seedless vascular plant
