20443053
Descripción
Test por Selah Lowery, actualizado hace más de 1 año
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Creado por Selah Lowery
hace más de 4 años
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|
Pregunta 1
Pregunta
Pollen is received by the
Respuesta
-
stigma.
-
style.
-
ovary.
-
carpel.
Pregunta 2
Pregunta
The parts of the pistil are the
Respuesta
-
anther and filament.
-
stigmas, style, and ovary.
-
petals and sepals.
-
calyx and corolla.
Pregunta 3
Pregunta
Some tropical plants have anthers that--
Respuesta
-
look like modified leaves with imbedded sporangia.
-
are exactly like microsporangia of cycads.
-
are modified gametes.
-
are modified megasporangia.
Pregunta 4
Pregunta
The corolla is composed of
Respuesta
-
petals.
-
sepals.
-
stamens.
-
carpels.
Pregunta 5
Pregunta
Flowers are--
Respuesta
-
modified roots.
-
modified stems.
-
modified gametophytes.
-
modified internodes.
Pregunta 6
Pregunta
Fertilization in angiosperms require--
Respuesta
-
one sperm.
-
two sperm, one of which degenerates.
-
two sperm, one of which fuses with the endosperm nuclei
-
many sperm.
Pregunta 7
Pregunta
The flower part are attached to a part of the flower stalk called the--
Respuesta
-
receptacle.
-
pedicle.
-
pistil.
-
filament.
Pregunta 8
Pregunta
Fruits can develop from--
Respuesta
-
carpels.
-
pedicles.
-
carples or pedicles.
Pregunta 9
Pregunta
Which of the following lists the parts of the flower in order from the outside to the inside?
Respuesta
-
Sepals, petals, anthers, pistils
-
Petals, sepals, anthers, pistils
-
Sepals, petals, pistils, anthers
-
Petals, sepals, pistils, anthers
Pregunta 10
Pregunta
Angiosperms differ from most other land plants in that they have--
Respuesta
-
double fertilization.
-
vascular tissue.
-
carpels.
Pregunta 11
Pregunta
Angiosperms are--
Respuesta
-
the most diverse group of plants.
-
less diverse than gymnosperms.
-
all land plants.
-
all have conspicuous flowers.
Pregunta 12
Pregunta
The pollen generative cell divides to produce--
Respuesta
-
a sperm nucleus.
-
a tube nucleus.
-
two sperm nuclei.
-
two tube nuclei.
Pregunta 13
Pregunta
Carpels are most likely--
Respuesta
-
modified megasporophylls.
-
modified microsporophylls.
Pregunta 14
Pregunta
The calyx is composed of--
Respuesta
-
petals.
-
sepals.
-
stamens.
-
carpels.
Pregunta 15
Pregunta
Zamia belongs to the--
Respuesta
-
ginkophyta.
-
cycadophyta.
-
coniferophyta.
-
gnetophyta.
Pregunta 16
Pregunta
In pines, the male gametophyte takes a few [blank] to fertilize the egg of the female gametophyte.
Respuesta
-
hours
-
minutes
-
months
Pregunta 17
Pregunta
All seed plants are--
Respuesta
-
heterosporous.
-
homosporous.
-
monoecious.
-
dioecious.
Pregunta 18
Pregunta
Which generation is the dominate generation in gymnosperms?
Respuesta
-
Sporophyte
-
Gametophyte
Pregunta 19
Pregunta
Which of the following is an evolutionary advantage of seeds?
Respuesta
-
Seeds provide food for the developing sporophyte.
-
Seeds provide protection.
-
Seeds allow for delayed germination until conditions are favorable.
Pregunta 20
Pregunta
Pollen grains are reduced--
Respuesta
-
sporangium.
-
sporophylls.
-
male gametophytes.
-
female gametophytes.
Pregunta 21
Pregunta
The archegonium of pines forms within the--
Respuesta
-
female gametophyte.
-
pollen tube.
-
microsporangium.
Pregunta 22
Pregunta
Ginko is--
Respuesta
-
monoecious.
-
dioecious.
-
vegetatively propagated (no sexual reproduction).
-
very sensitive to air pollution.
Pregunta 23
Pregunta
There is adequate redwood and Douglas Fir timber for this century.
Respuesta
- True
- False
Pregunta 24
Pregunta
The term gymnosperm refers to--
Respuesta
-
naked seeds.
-
seeds enclosed in a fruit.
-
sperm enclosed in pollen.
-
sperm enclosed in a fruit.
Pregunta 25
Pregunta
Pines belong to--
Respuesta
-
ginkophyta.
-
cycadophyta.
-
coniferophyta.
-
gnetophyta.
Pregunta 26
Pregunta
Gymnosperms such as pine produce--
Respuesta
-
vast amounts of pollen.
-
very little pollen.
-
seeds in only a few weeks.
-
pollen in megasporangia.
Pregunta 27
Pregunta
Which of the following belong to Division Pinophyta?
Respuesta
-
Hemlock
-
Spruce
-
Cypress
-
Ephedra
Pregunta 28
Pregunta
The archegonium contains--
Respuesta
-
large spores.
-
small spores.
-
eggs.
-
sperm.
Pregunta 29
Pregunta
Sporophylls of club mosses--
Respuesta
-
bear sporangia on their lower surfaces.
-
are always morphologically distinct from vegetative leaves.
-
are always photosynthetic.
-
can be grouped into strobili.
Pregunta 30
Pregunta
The dominate generation of horsetails is the [blank] generation.
Respuesta
-
sporophyte
-
gametophyte
Pregunta 31
Pregunta
Spores of homosporus farms--
Respuesta
-
develop into green gametophytes.
-
only germinate in the dark.
-
develop into sporophytes.
-
develop into fiddleheads.
Pregunta 32
Pregunta
Lycopodium and Selaginella--
Respuesta
-
are both homosporous.
-
have mycorrhizal fungi in their gametophytes.
-
require water for fertilization.
Pregunta 33
Pregunta
Spores of Lycopodium are homosporous. This means that--
Respuesta
-
there are two different sizes spores in one plant.
-
spores are all the same size.
Pregunta 34
Pregunta
A megaspore will grow into the--
Respuesta
-
female gametophyte.
-
male gametophyte.
Pregunta 35
Pregunta
Horsetails can be used for--
Respuesta
-
feeding livestock.
-
polishing pots and wood.
-
reducing a headache.
-
sterile wound dressing.
Pregunta 36
Pregunta
A sporophyte is a--
Respuesta
-
modified leaf that bears a sporangium.
-
container for spores.
-
container for gametophytes.
Pregunta 37
Pregunta
The earliest vascular plants appeared in the fossil record about--
Respuesta
-
100,000 years ago (last ice age)
-
100 million years ago (the time of the dinosaurs)
-
400 million years ago (with the appearance of the first vertebrate fossils)
Pregunta 38
Pregunta
The gametophyte generation is produced by--
Respuesta
-
meiosis.
-
mitosis.
Pregunta 39
Pregunta
Bryophytes have--
Respuesta
-
true roots.
-
structures which anchor the to the soil called rhizoids.
Pregunta 40
Pregunta
While most bryophytes grow in wet areas, some have developed tolerance to dry conditions and can survive desiccation.
Respuesta
- True
- False
Pregunta 41
Pregunta
The sporophyte generation is--
Respuesta
-
diploid.
-
haploid.
Pregunta 42
Pregunta
Hornworts have archegonia that are--
Respuesta
-
imbedded in the thallus.
-
born on stalks above the thallus.
-
at the tip of the stem.
Pregunta 43
Pregunta
The moss gametophyte generation is--
Respuesta
-
haploid.
-
diploid.
-
polyploid.
Pregunta 44
Pregunta
When spores germinate, the developing chains of cells are called--
Respuesta
-
gametophytes.
-
buds.
-
protonema.
Pregunta 45
Pregunta
Aside from the production of spores, all other cell divisions in the gametophyte and sporophyte generations are produced by mitosis.
Respuesta
- True
- False
Pregunta 46
Pregunta
The container in which spores are formed is called a(n)--
Respuesta
-
operculum.
-
sporangium.
-
antheridium.
-
archegonium.
Pregunta 47
Pregunta
The dominate generation of the Marchantia is the [blank] generation.
Respuesta
-
gametophyte
-
sporophyte
Pregunta 48
Pregunta
The moss mature sporophyte consists of three parts. These are the--
Respuesta
-
protonema, bud, and moss plant.
-
foot, setae, and capsule.
Pregunta 49
Pregunta
Mosses belong to the division--
Respuesta
-
Bryophyta.
-
Hepatophyta.
-
Anthocerotophyta.
Pregunta 50
Pregunta
Mosses have--
Respuesta
-
true xylem and phloem.
-
conducting tissue but not true xylem and phloem.
-
no conducting tissue.
Pregunta 51
Pregunta
In which of the following is the gametophyte generation the dominate generation?
Respuesta
-
Hornworts
-
Liverworts
-
Mosses
Pregunta 52
Pregunta
As plants moved to land, adaptations to a land environment became necessary. To avoid desiccation, bryophytes developed--
Respuesta
-
a waxy cuticle.
-
xylem and phloem conducting tissues.
-
stomates to protect against water loss.
-
lignin.
-
conducting tissues that are not true xylem and phloem.
Pregunta 53
Pregunta
Mosses determine sex by--
Respuesta
-
environmental cues.
-
an X and Y chromosome system.
Pregunta 54
Pregunta
The moss sporophyte obtains nourishment from the--
Respuesta
-
soil.
-
leaves.
-
gametophyte.
Pregunta 55
Pregunta
Aquatic habitats have advantages over land habits. This includes--
Respuesta
-
more available light.
-
more available CO2.
-
a constant source of water.
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