Plant
Diversity II: answers
1)
sporangia
2) The flower is composed of gametophyte
tissue only.
3)
reduction of the gametophyte phase of the life
cycle
4)
mitochondria.
5)
their gametophytes are protected by, and obtain
nutrition from, the sporophytes.
6)
a choice of germination location.
7)
a haploid gametophyte retained within tissues of
the diploid sporophyte ,pollen
8) pollen
grain
9)
3, 1, 4, 2
10) cotyledon.
11) anther and
filament.
12)
within an ovule contained within an ovary of a flower
13) a mature ovary.
14)megaspore-2n
15)
alternation of generations
16)
parallel leaf venation
17)
ovaries.
18) male gametophyte ---sporopollenin
19) fern gametophyte that will bear only
antheridia.
20) integument(s)
21)
have pollen.
22) windblown
seeds.
23) soils.
24)
Female gametophytes use meiosis to produce eggs.
25)
Pollen grains are very different from pine male gametophytes.
26) 4, 2, 3, 1
27) 1, 4, 3, 2, 5
28)
A mature fruit is a short stem with spore-bearing appendages.
29) both male
and female gametophytes
30)
1,
2, and 3
31) ovule
32)
spores.
33)
They are modified leaves.
34) integuments;
sporopollenin
35)D
36)d
37)
b
38) d
39) a
40) cycads (Cycadophyta
41) free-living
gametophytes.
42) pollen
tubes.
43) They are currently thought to be
polyphyletic.
44) modified sporophylls.
45) are structures
that directly produce female gametes.
46) detritivorous (scavenging) animal
47)
by facilitating dispersal of seeds
48)
spore mother cells.
49) 4, 1, 2, 5, 3
50) two sperm nuclei / the pollen
tube
51)
b
52)
d?
53) b
54) b
55)
c
56) have two sperm nuclei, both of which
unite with nuclei of the female gametophyte.
57) coordinate
developmental timing between the embryo and its food stores.
58) ovule
59)
ovary
60) flagellated sperm.
61) sperm cells
with flagella.
62)
have brightly colored reproductive parts.
63)
microsporangium
64) inhibits herbivory.
65)
possessing an abdomen that is densely covered with
short bristles
66) It should be nutritious.
67)
b
68)
a.
69)
c.
70)
d shape.
71) e
72) artificial selection
73)
human population growth
74) People in the tropics do not need to
increase agricultural output.
75)
observing which plants are the most used food
plants.
76) seed
77) micropyle.
78) haploid; meiosis