Matching
|
|
|
For each phrase, identify the main plant group.
a. |
mosses |
c. |
gymnosperms |
b. |
ferns |
d. |
angiosperms |
|
|
|
|
|
| |
1. |
the
major source of wood products for construction and furniture
|
| |
2. |
our
major source of food
|
| |
3. |
dominated terrestrial environments during the reign of the dinosaurs
|
| |
4. |
are
pollinated by bats, hummingbirds, and many insects
|
| |
5. |
are
harvested and used as a fuel and a soil conditioner
|
| |
6. |
include many flowering trees
|
| |
7. |
lack
true roots and leaves
|
| |
8. |
all
are seed-producing trees
|
| |
9. |
include all the grasses
|
Completion
Complete each sentence
or statement.
|
| |
10. |
The
life cycles of plants demonstrate an ____________________ of generations,
in which occur both a gamete-producing ____________________ plant and
a spore-producing ____________________ plant.
|
| |
11. |
In
the mosses and ferns, the male gametes are mobile ____________________
cells that require a thin film of water in which to swim. These male
gametes fertilize an ____________________, forming a zygote. The zygote
then develops into the ____________________ plant.
|
| |
12. |
In
mosses, the sporophyte plant is attached to, and actually grows on,
the ____________________ plant. In ferns, the sporophyte plant is much
____________________ in size than the ____________________ plant and
grows independently of it.
|
| |
13. |
Ferns
have specialized ____________________ tissue for transporting water
and nutrients within the plants. This allows ferns to grow ____________________
than mosses.
|
| |
14. |
Gymnosperms and angiosperms both produce ____________________ that
contain an embryo and food. These structures can remain ____________________,
waiting for ideal conditions to germinate.
|
| |
15. |
Most
gymnosperms have ____________________ or ____________________ leaves.
Many keep their leaves throughout the winter and are called ____________________.
The seeds of gymnosperms are produced in the female ____________________.
|
| |
16. |
In
gymnosperms, the gametophytes are not free living, but instead occur
as ____________________ plants within female cones and male pollen grains.
The pollen grains are produced in male ____________________, released
and carried by ____________________.
|
| |
17. |
The
most distinguishing feature of angiosperms is the production of specialized
reproductive organs called ____________________. These are often colourful
and fragrant to attract animal ____________________.
|
| |
18. |
In
angiosperms, the wall of the ovary forms a specialized structure called
a ____________________, and contains the seeds.
|
Short Answer
|
| |
19. |
Explain how the following affects biodiversity: A single plant
species becomes extinct.
|
| |
20. |
Explain how the following affects biodiversity: An exotic species
is introduced.
|
| |
21. |
Explain how the following affects biodiversity: A monoculture is
planted.
|
| |
22. |
Explain how the following affects biodiversity: A habitat is destroyed.
|