Form 01
Biology
Page 39
46 During an extended dry season in an area, the majority of the ground
cover dried up. Which description best explains how this would affect
the ecosystem in that area?
F The ecosystem would become less stable because the ranges of
many organisms would expand and overlap.
G The ecosystem would become more stable because there would be
less competition among canopy plants.
H The ecosystem would become less stable because less energy
would be available to it from the decrease in producers.
J The ecosystem would become more stable because organisms in
higher trophic levels would be able to nd prey more easily.
7455
47 Water, sugar, and other important nutrients need to be transported
from one part of a plant to another. Which statement correctly
describes the interaction of the root and shoot systems during
nutrient transport?
A The leaves take in water and sugar, which are then transported to
the rest of the plant through vascular tissues.
B The roots take in water and sugar, which are then transported to
the rest of the plant through vascular tissues.
C The leaves take in water and the roots produce sugar that are
transported to the rest of the plant through vascular tissues.
D The roots take in water and the leaves produce sugar that are
transported to the rest of the plant through vascular tissues.
8297