67. The covering of a sorus is called a(n) ____________________.
68. The fern gametophyte is called a(n) ____________________.
69. The type of branching where the stem divided into two essentially equal halves is called
____________________
70. Megaspores are produced in ____________________.
71. The production of two different kinds of spores is a condition known as ____________________.
72. A cone-like structure found in horsetails that bears sporangia is called a(n) ____________________.
73. In horsetails, the ____________________ is the dominant generation.
74. A scale-like structure produced at the base of the leaves of spike mosses is a(n) ____________________.
75. The stem found in quillworts is called a(n) ____________________.
76. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a sorus?
a.
A
b.
B
c.
D
d.
E
e.
I
77. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a prothallus?
a.
A
b.
B
c.
C
d.
D
e.
I
78. Figure 23-1
Refer to Figure 23-1. Which letter best indicates an archegonium?
a.
C
b.
D
c.
E
d.
G
e.
E
79. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a sporangium?
a.
A
b.
B
c.
C
d.
D
e.
G
80. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a structure that has an indusium?
a.
A
b.
B
c.
E
d.
G
e.
I
81. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a mature sporophyte plant?
a.
B
b.
C
c.
G
d.
H
e.
I
82. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a mature gametophyte plant?
a.
B
b.
C
c.
G
d.
H
e.
I
83. Figure 23-1
Refer to Figure 23-1. Which letter best indicates a zygote?
a.
A
b.
C
c.
D
d.
F
e.
G
84. Summarize the features of seedless vascular plants that distinguish them from bryophytes.
85. What is the ecological significance of seedless vascular plants?
86. What is the economic importance of seedless vascular plants?
87. Name and describe one of Earth’s earliest vascular plants.