During what period did seedless vascular plants form extensive forests of tall trees?
0%
Equisetum
0%
Pterophytes
0%
Carboniferous
0%
On moist soil
Q.3.
What is the evolutionary significance of megaphylls?
0%
All of the listed characteristics inhibit decomposition.
0%
Reproductive cells are more resistant to desiccation.
0%
Distribution of sugars, amino acids, and other organic products
0%
They increase the surface area for photosynthesis.
Q.4.
In moving to land, plants had to overcome which of the following challenges?
0%
vascular tissue
0%
Pterophytes
0%
Desiccation
0%
megaphylls
Q.5.
The embryophytes are __________.
0%
the land plants
0%
Pterophytes
0%
megaphylls
0%
the sporangia
Q.6.
The gametophyte stage of the plant life cycle is most conspicuous in __________.
0%
Stomata
0%
cuticle
0%
mosses
0%
megaphylls
Q.7.
A major division in plant systematics is based on whether a particular species has __________.
0%
Desiccation
0%
vascular tissue
0%
Charophytes
0%
Equisetum
Q.8.
Which of the following statements about algae and plants is true?
0%
They increase the surface area for photosynthesis.
0%
Plants have a waxy, waterproof cuticle, and algae do not.
0%
Walled spores produced in sporangia
0%
In plants, the haploid and diploid stages are both multicellular.
Q.9.
Water is brought into mosses primarily by __________.
0%
Distribution of sugars, amino acids, and other organic products
0%
They increase the surface area for photosynthesis.
0%
By mitosis of gametophyte cells
0%
diffusion through all cells
Q.10.
Typically, the upper part of a bryophyte capsule that contains the spores features a ring of interlocking, tooth-like structures known as the __________.
0%
It is a sporophyte.
0%
peristome
0%
Pterophytes
0%
Charophytes
Q.11.
In sporophyte ferns, the leaves are __________.
0%
megaphylls
0%
Charophytes
0%
the land plants
0%
the sporangia
Q.12.
The development of the __________ prevents plants from drying out and protects them from microbes.
0%
cuticle
0%
Desiccation
0%
peristome
0%
mosses
Q.13.
What structures allow plants to readily take up carbon dioxide from the atmosphere?
0%
Desiccation
0%
Equisetum
0%
Pterophytes
0%
Stomata
Q.14.
The tissue called phloem has what function in vascular plants?
0%
They increase the surface area for photosynthesis.
0%
A moist environment is required for sexual reproduction.
0%
Reproductive cells are more resistant to desiccation.
0%
Distribution of sugars, amino acids, and other organic products
Q.15.
The antheridia of mosses produce __________.
0%
Equisetum
0%
the sporangia
0%
Stomata
0%
sperm
Q.16.
Where would you find a fern gametophyte?
0%
A moist environment is required for sexual reproduction.
0%
the land plants
0%
Pterophytes
0%
On moist soil
Q.17.
How are gametes produced by bryophytes?
0%
On moist soil
0%
Distribution of sugars, amino acids, and other organic products
0%
Pterophytes
0%
By mitosis of gametophyte cells
Q.18.
Which is a key difference between alternation of generations in plants and sexual reproduction in nonplant organisms?
0%
Plants have a waxy, waterproof cuticle, and algae do not.
0%
In plants, the haploid and diploid stages are both multicellular.
0%
All of the listed characteristics inhibit decomposition.
0%
All of the listed traits of land plants are present in their closest relatives among the algae.
Q.19.
The "dots" on the underside of a fern frond are spore cases; therefore, what is true of the plant to which the frond belongs?
0%
vascular tissue
0%
the sporangia
0%
It is a sporophyte.
0%
In plants, the haploid and diploid stages are both multicellular.
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