and (17)
Other specializations for obtaining nutrients have
evolved in various groups of plants. Some plants, such
as (16)
are parasitic. They
tape into the vascular systems of other plants and
steal food and nutrients. Some plants, such as orchids,
grow on other plants but are not parasites. These
plants get their water and minerals from rain and are
called (18)
(19)
plants, such as sundew and (20)
often grow in bogs where the soil is poor in (21)
and other minerals. These plants obtain the
minerals they need by trapping and digesting (22)
di
The roots of plants in the (23).
family, such as
peas, beans, and alfalfa, have swellings called (24)
that house (25)
bacteria. Again, the
arrangement is mutually beneficial. The legume plant
provides the bacteria with (26)
and the
into
bacteria convert atmospheric (27).
A.
Nitrogen
B. N₂
c. Epiphytes
D. Nitrogen-fixin
E. Carnivorous
Corn or Whea
crops, alternating between legumes and nonlegumes
such as (29)
F.
G. Nodules
H. Organic
ammonium. Excess ammonium may actually enter the
soil, and for this reason, farmers often (28)
compounds
1.
Dodder
J.
Insects
K. Venus flytre
Rotate
L.
M. Mistletoe
N. Legume