Transcript Slide 1

According to the water quality table below, which 4
factors decreased the number of fish found in the
water?
Fish Population
A.
B.
C.
D.
Temperature (°C)
Dissolved Oxygen
(mg/L)
100
30
5
200
26
10
400
22
15
600
18
20
800
14
25
1000
10
30
Low water temperature and low dissolved oxygen
High water temperature and low dissolved oxygen
Low water temperature and high dissolved oxygen
High water temperature and high dissolved oxygen
Birch trees grow in cool climates. What is the
likely effect on birch forests if the climate gets
warmer?
F.
The birch trees will
grow taller.
G. More birch trees will
survive and the
forests will spread.
H.
Fewer birch trees will
survive and other kinds
of trees will grow in that
forest.
J. Deer will eat all the
birch seedlings.
Which of the following is an adaptation that would help
an organism survive in a desert?
A.
the ability of a cactus to store water in its stem
B.
a rodent being active in the middle of the day
C.
D.
a bird with a thick layer of dark feathers
a plant having large, thin leaves
Which is the best example of a survival trait in an
organism?
F. Some humans have attached earlobes
G. Some lizards can change their body color
H. Some earthworms are longer than others
I. Some dog breeds have hair of different colors
When an area’s climate changes, it may become warm
earlier in the spring and remain warm longer in the fall.
Which of these is the most likely response to such a change?
A. Plants would develop larger leaves to capture more sunlight
B. Small plants would sprout earlier in the spring
C. Migrating birds would breed later in the years
D. Oak trees would grow larger acorns