Question 1

The eudicots

Accepted Answer

A)   include many herbs, vines, shrubs, and trees.
B)   and the monocots are the only extant angiosperm clades.
C)   are not a clade.
D)   include the magnolias.
E)   include orchids and palm trees. A

Question 2

Most angiosperms

Accepted Answer

A)   have seeds enclosed in a carpel.
B)   produce triploid endosperm by the union of two eggs and one sperm.
C)   lack secondary growth.
D)   bear two kinds of cones.
E)   lack flowers. A

Question 3

Discuss the benefits of double fertilization in angiosperms.

Accepted Answer

Double fertilization allows for a diploid embryo and a triploid endosperm. The endosperm provides nutrition to the developing embryo at the time of seed germination.

Question 4

Which of the following is the most likely reason that angiosperms are the most prevalent plant species on Earth today?

Accepted Answer

A)   Only angiosperms produce seeds.
B)   Only angiosperms produce pollen.
C)   Angiosperms produce fruit that aids in their dispersal.
D)   Angiosperms are tracheophytes.
E)   Some angiosperms have two cotyledons.

Question 5

The part of a flower that receives pollen is the

Accepted Answer

A)   ovule.
B)   receptacle.
C)   stigma.
D)   ovary.
E)   style.

Question 6

Which of the following statements about the function of a fruit is true?

Accepted Answer

A)   It aids in dispersal of seeds.
B)   It protects seeds until they are mature.
C)   It attracts pollinators.
D)   It provides nutrients to the embryo.
E)   Both a and b

Question 7

The modified leaves on a flower, called _______, can be showy to attract animals.

Accepted Answer

The answer of The modified leaves on a flower, called...

Question 8

A fruit that develops from several carpels of a single flower, such as a raspberry, is a(n) _______ fruit.

Accepted Answer

A)   aggregate
B)   simple
C)   multiple
D)   accessory
E)   perfect

Question 9

A seed of a flowering plant or gymnosperm may contain tissues from _______ generation(s).

Accepted Answer

A)   one
B)   two
C)   three
D)   four
E)   five

Question 10

There has been a change in the dominant vegetation since plants first invaded the terrestrial environment about 400-500 million years ago. In what order were these vegetation types dominant, from earliest to most current?

Accepted Answer

A)   Gymnosperms, progymnosperms, angiosperms
B)   Angiosperms, progymnosperms, gymnosperms
C)   Progymnosperms, gymnosperms, angiosperms
D)   Angiosperms, gymnosperms, progymnosperms
E)   Progymnosperms, angiosperms, gymnosperms

Question 11

Which of the following groups is characterized by fruits, flowers, endosperms, and much reduced gametophytes?

Accepted Answer

A)   Cycads
B)   Angiosperms
C)   Conifers
D)   Gnetophytes
E)   Ginkgos

Question 12

Conifers and cycads began to flourish during which geologic time period?

Accepted Answer

A)   Precambrian
B)   Permian
C)   Devonian
D)   Ordovician
E)   Tertiary

Question 13

Which of the following characteristics is not unique (i.e., not a synapomorphy) to the angiosperms?

Accepted Answer

A)   The production of triploid endosperm
B)   The production of fruit
C)   Xylem that contains vessel elements and fibers
D)   A reduced gametophyte generation
E)   The production of flowers

Question 14

Which group of gymnosperms includes a species that has male and female trees in which the sex is determined by sex chromosomes?

Accepted Answer

A)   Ginkgos
B)   Gnetophytes
C)   Conifers
D)   Cycads
E)   There are no groups of gymnosperms with that characteristic.

Question 15

Coniferous gymnosperms, such as pines, depend primarily on _______ for pollination, thus the plants produce large quantities of pollen that disperse over large areas during the spring.

Accepted Answer

A)   insects
B)   birds
C)   water
D)   wind
E)   mammals

Question 16

Use the following to answer questions :
Refer to the diagram below of a pine seed. 
-Which structure(s) represent(s) the female gametophyte?

Accepted Answer

The answer of Use the following to answer questions :
Refer...

Question 17

_______ are researchers who study how people use and view plants in their local environments.

Accepted Answer

The answer of _______ are researchers who study how people...

Question 18

How have gymnosperms surmounted the obstacles that all plants faced when they began to colonize terrestrial environments?

Accepted Answer

The answer of How have gymnosperms surmounted the obstacles that...

Question 19

Angiosperms differ from gymnosperms in that

Accepted Answer

A)   all angiosperms show secondary growth.
B)   only some living gymnosperms show secondary growth.
C)   gymnosperms flower.
D)   angiosperms flower.
E)   gymnosperms do not show alternation of generations.

Question 20

From an evolutionary standpoint, pollen is a

Accepted Answer

A)   microsporophyll.
B)   megasporophyll.
C)   microgametophyte.
D)   megagametophyte.
E)   microspore.

Exam 29: The Evolution of Seed Plants