Chapter 29 Homework Questions
Plants evolved from green algae approximately _____ million years ago.
475
Which of these structures is diploid?
D
Which of these represents the sporophyte generation of the moss life cycle?
E This is the young diploid sporophyte.
In moss, _____ produce sperm.
antheridia
The living plants that are most similar to the first plants to bear gametangia are the _____.
bryophytes
Which of these characteristics is shared by algae and seed plants?
chloroplasts
The conspicuous part of a fern plant is a _____.
diploid sporophyte
_____ are an example of seedless vascular plants.
ferns
Angiosperms are most closely related to _____.
gymnosperms
Which of these was the dominant plant group at the time that dinosaurs were the dominant animals?
gymnosperms
In mosses gametes are produced by _____; in ferns gametes are produced by _____.
mitosis...mitosis In both, gametes are produced by haploid gametophytes.
The sperm produced by mosses require _____ to reach an archegonium.
moisture
Where do fern antheridia develop?
on the underside of the gametophyte
Charophyceans are the green algae most closely related to plants
true
