Download The first seedless vascular plants ______.

The first seedless vascular
plants ________.
1.
are also known as
charophytes
are represented by fossil
species such as desmids and
stonewort
were rhyniophytes such as
Cooksonia and Psilophyton
were microscopic free-living
cells
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
The species that gave rise to
plants were ________.
25%
1.
2.
3.
4.
1
25%
25%
2
3
25%
mosses
liverworts
hornworts
green algae
2
3
1
4
Select the correct statement about
the life cycle of land plants.
1.
a gametophyte is a haploid
multicellular plant in which
haploid gametes form
a sporophyte is a diploid
multicellular plant which
produces diploid spores
haploid gametes produced by
the gametophyte fuse to
produce a haploid zygote
the gametophyte is the dominant
generation in angiosperms and
gymnosperms
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
Seeds arose in the common
ancestor of ________.
25%
25%
25%
2
3
25%
1. horsetails and ferns
2. gymnosperms and
angiosperms
3. lycophytes and other
vascular groups
4. bryophytes and
lycophytes
1
2
3
1
4
In the bryophyte life cycle,
________.
25%
1.
25%
2
3
25%
the haploid gametophyte grows out
of, and is nourished by, the diploid
sporophyte
male gametophytes produce pollen
grains which are transferred to the
female gametophytes by insects
the diploid sporophyte grows out of
the haploid gametophyte, and then
produces haploid spores by meiosis
adaptations to land make it possible
for fertilization to occur without water
2.
3.
4.
1
25%
2
3
1
4
The liverwort Marchantia produces
gemmae, which ________.
1.
2.
anchor the plant in place of roots
live in tiny cups on the plant
body until they are splashed out
by raindrops and develop into
new plants
consist of green, ribbonlike
tissue making up the plant body
produce female gametes
involved in sexual reproduction
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
Strobili are ________.
1.
scalelike leaves at the stem
nodes of horsetails
horizontal, absorptive,
underground stems of whisk
ferns
spore-producing structures
on the tips of Psilotum stems
conelike reproductive
structures of lycophytes and
horsetails
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
In the fern life cycle, ________.
1.
the inconspicuous gametophyte
produces both sperm and eggs,
which fertilize to form a diploid
zygote
the dominant generation is the
gametophyte
haploid spores are produced by
the gametophyte
sori are sperm-producing
structures on the underside of
the mature gametophyte
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
Coal ________.
25%
1.
25%
2
3
25%
is primarily the remains of
dinosaurs that lived in the
Jurassic
is derived from early seedless
vascular plants that lived in the
Silurian
deposits are the result of sea
level changes alternately
submerging and exposing
forests during the Carboniferous
is considered a renewable
resource because it is still being
formed beneath forests today
2.
3.
4.
1
25%
2
3
1
4
Calamites, which grew up to twenty meters
tall during the Carboniferous, are related to
today's ________.
1. club moss
25% 25%
25%
25%
2. pine trees
3. ferns
4. horsetails
1
2
3
1
2
3
4
Which of the following statements about the
relationship of humans to seed plants is
false?
25%
1.
25%
2
3
25%
evidence shows that Homo
erectus hoarded wild food in
caves and roasted seeds as
long as 500 million years ago
humans regularly cultivate 3000
species as crops
humans, like pollinating insects,
have been recruited by plants to
aid in their propagation and
dispersal
seeds we use as food are
actually mature ovules
2.
3.
4.
1
25%
2
3
1
4
Cycads ________.
1.
were diverse in the past, but
today include only one surviving
species, Ginkgo biloba, the
maidenhair tree
are represented by a single
species of Welwitschia that lives
in deserts of Africa
are cone-bearing evergreens
including fir, spruce, and juniper.
have pollen-bearing strobili and
seed-bearing strobili on
separate plants
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
The oldest tree is a
25%
1.
2.
3.
4.
1
25%
25%
2
3
25%
cycad
gnetophyte
conifer
ginkgo
2
3
1
4
Which statement about the life
cycle of a conifer is false?
25%
1.
25%
2
3
25%
a single pine tree bears only
male or only female cones
the mature sporophyte
produces female cones with
megaspore-containing ovules
on tips of cone scales
a pine's pollen-bearing cones
are called strobili
all of the choices
2.
3.
4.
1
25%
2
3
1
4
In the Mesozoic, conifers and
other gymnosperms ________.
1.
declined after a major
adaptive radiation of
angiosperms
declined before a major
adaptive radiation of
angiosperms
increased in number despite
competition from
angiosperms
evolved into angiosperms
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
The most ancient of the following groups of
flowering plants are the ________.
1.
2.
3.
4.
1
water lilies
magnoliids
monocots
eudicots
2
3
25%
1
25%
25%
2
3
25%
4
Double fertilization in the angiosperm
life cycle means that ________.
1.
each of two sperm nuclei will fertilize
one of the two eggs in the female
gametophyte
in the female gametophyte, meiosis
is followed by double rounds of
mitosis without cytoplasmic division
one of the sperm nuclei will fertilize
the egg and the other will fertilize the
endosperm-producing cell
in the ovule, the endospermproducing cell has two nuclei before
fertilization
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4
In angiosperms, the mature
male gametophyte is ________.
25%
1.
2.
3.
25%
2
3
25%
the pollen tube
a pollen grain
an inconspicuous heartshaped plant a few
centimeters across,
often found in the soil
near the sporophyte
the strobilus
4.
1
25%
2
3
1
4
Kenyan Wangari Maathai won a Nobel
Peace Prize in 2004 for her work ________.
25%
1.
25%
2
3
25%
vaccinating African
children
developing pestresistant strains of crops
supporting women's
rights and planting trees
freeing child soldiers
from their captors
2.
3.
4.
1
25%
2
3
1
4
If tropical forests are deforested,
________.
1.
people can use the land for
generations to grow crops
and raise animals
sparse dry grasslands or
deserts may replace the
rainforest
the exposed soil beneath is
rich in humus and organic
matter
more incoming sunlight is
absorbed by the earth
2.
3.
4.
1
2
3
25%
1
25%
25%
2
3
25%
4