All of the following statements about the reproduction of vascular plants are true, except:
All of the following statements about the reproduction of vascular plants are true, except: o a. Vascular plants (except ferns) produce male gametes called pollen. o b. The gametophyte is the dominant form of the lifecycle. o c. The gametophytes are present in the cones of gymnosperms and flowers of angiosperms. d. Ferns reproduce through the formation of spores under their fronds.
Show transcribed image textAll of the following statements about the reproduction of vascular plants are true, except: o a. Vascular plants (except ferns) produce male gametes called pollen. o b. The gametophyte is the dominant form of the lifecycle. o c. The gametophytes are present in the cones of gymnosperms and flowers of angiosperms. d. Ferns reproduce through the formation of spores under their fronds.
Which dramatic change in the alternation-of-generations lifecycle led to the protection of all phases of the life cycle and theformation of seeds?
Question 2 options:
transition from a dominant gametophyte generation to a dominantsporophyte generation
transition from a dominant sporophyte generation to a dominantgametophyte generation
Question 3
Which structure(s) allow the sporophyte of vascular plants to beprotected against drying out?
Question 3 options:
the waxy covering of leaves, called the cuticle
small openings in the leaves, called stomata
guard cells that surround each stoma
all of these structures protect the dominant sporophyte fromdrying out
Question 4
Why are the bryophytes called nonvascular plants?
Question 4 options:
because they are specialized for transporting water and organicnutrients
because their roots, stems, and leaves lack vascular tissue
because they protect their embryo
because they produce wind-blown spores
Question 5
Which generation is dominant in the bryophytes?
Question 5 options:
the generations are equally dominant
the sporophyte
the gametophyte
there is no sporophyte generation in bryophytes
Question 6
Which of the bryophytes are typically low-lying, due mostly totheir need for moisture and lack of vascular tissue?
Question 6 options:
the mosses
the liverworts
the hornworts
all of the bryophytes are low-lying
Question 7
Which structure of the moss protects the embryo from dryingout?
Question 7 options:
the archegonium
the antheridium
the sporangium
the stalk
Question 8
Cooksonia were the first __________ plants; they hadwind-blown spores, __________, leaves, and roots.
Question 8 options:
nonvascular; branches
vascular; seeds
nonvascular; seeds
vascular; branches
Question 9
The roots of today's lycophytes are much like __________ were inearly vascular plants; the vascular tissue is __________.
Question 9 options:
roots; centrally placed
stems; centrally placed
leaves; only found at the perimeter
branches; only found at the perimeter
Question 10
Pteridophytes, or ferns and their allies, are __________vascular plants with __________.
Question 10 options:
seed-producing; microphylls
seedless; microphylls
seedless; megaphylls
seed-producing; megaphylls
Question 11
Microphylls __________. Megaphylls__________.
Question 11 options:
are found in all vascular plants; are only found in thelycophytes
are broad leaves with a single strand of vascular tissue; arenarrow and have several strands vascular tissue
are broad leaves with several strands of vascular tissue; arenarrow and have a single strand of vascular tissue
are narrow and have a single strand of vascular tissue; arebroad leaves with several strands of vascular tissue
Question 12
The fern life cycle
Question 12 options:
all of these choices accurately describe the fern lifecycle.
is dependent on external water.
relies on the wind to disperse the spores.
produces a gametophyte that lacks vascular tissue.
Question 13
Seed plants use meiosis to produce
Question 13 options:
spores and pollen.
seeds and fruit.
pollen and seeds.
microspores and megaspores.
Question 14
In seed plants, a microspore develops into
Question 14 options:
an egg.
a pollen grain.
a sporophyte.
All of these answers correctly complete this sentence.
Question 15
Within the angiosperms, or ___________, two groups exist. Theyare named for their __________.
Question 15 options:
vascular plants; number of cotyledons, or seed coats
nonvascular plants; leaf type
flowering plants; number of cotyledons, or seed coats
fungi; leaf type
Question 16
The __________ parts of a flower are the stamens, each of whichhas two parts: the anther and the filament. The __________ parts ofa flower are the carpel, which has three major regions: the stigma,the style, and the __________.
Question 16 options:
female; male; ovary
male; female; sepals
female; male; sepals
male; female; ovary
Question 17
Double fertilization during the angiosperm life cycle involvestwo sperm, one of which __________, while the other __________.
Question 17 options:
fertilizes the egg to form a zygote; produces the endospermnucleus, which will develop into food for the developing plant
is a mature male gametophyte; is an immature malegametophyte
lands on the carpel of the plant; is usually blown away in thewind
develops into the seed; develops into the fruit that surroundsthe seeds
Question 18
The bodies of most fungi are made up of a network of filamentscalled hyphae.
Question 18 options:
True
False
Question 19
What is the difference between land fungi and the chytrids?
Question 19 options:
Land fungi are motile and have flagella at all stages of theirlife cycle. The chytrids do not have flagella.
Land fungi are nonmotile and do not have flagella at any stageof their life cycle. The chytrids have flagellated spores andgametes.
Land fungi are nonmotile and only have flagellated spores. Thechytrids have flagellated spores and gametes.
Both are motile for part of their life cycle. Land fungi aremotile as gametes. Chytrids are motile as spores.
Question 20
The vast majority of described species of fungi are __________fungi, which include unicellular __________, which reproducesexually once their food supply runs out. When yeast ferment, theyproduce ethanol and carbon dioxide.
