Biology

Eric P. Widmaier; Linda E. Graham; Robert J. Brooker

Chapter 29

Plants and the Conquest of Land - all with Video Answers

Educators

Chapter Questions

Problem 1

The simplest and most ancient phylum of modern land plants is probably
a. the pteridophytes.
b. the cycads.
c. the liverworts.
d. the angiosperms.
e. none of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 2

An important feature of land plants that originated during the diversification of streptophyte algae is
a. the sporophyte.
b. spores, which are dispersed in air and coated with sporopollenin.
c. tracheids.
d. plasmodesmata.
e. fruits.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 3

A phylum whose members are also known as bryophytes is commonly known as
a. liverworts.
b. hornworts.
c. mosses.
d. all of the above.
e. none of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 4

Plants possess a life cycle that involves alternation of two multicellular generations: the gametophyte and
a. the lycophyte.
b. the bryophyte.
c. the pteridophyte.
d. the lignophyte.
e. the sporophyte.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 5

The seed plants are also known as
a. bryophytes.
b. spermatophytes.
c. pteridophytes.
d. lycophytes.
e. none of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 6

A waxy cuticle is an adaptation that
a. helps to prevent water loss from tracheophytes..
b. helps to prevent water loss from streptophyte algae.
c. helps to prevent water loss from bryophytes.
d. aids in water transport within the bodies of vascular plants.
e. does all of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 7

Plant photosynthesis transformed a very large amount of atmospheric carbon dioxide into decay-resistant organic compounds, thereby causing a dramatic decrease in atmospheric carbon dioxide levels during the geological period known as the
a. Cambrian.
b. Ordovician.
c. Carboniferous.
d. Permian.
e. Pleistocene.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 8

Which of these plant phyla is likely to have the largest leaves?
a. liverworts
b. hornworts
c. mosses
d. lycophytes
e. pteridophytes

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 9

Fern euphylls, also known as megaphylls, probably evolved from
a. the leaves of mosses.
b. Iycophylls.
c. branched-stem systems.
d. modified roots.
e. none of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator

Problem 10

A seed develops from
a. a spore.
b. a fertilized ovule.
c. a microsporangium covered by integuments.
d. endosperm.
e. none of the above.

Christina Sorrentino

Christina Sorrentino

Numerade Educator