2. The accompanying graph shows the relationship between mass and volume
for three samples, A, B, and C, of a
given material. What is the density of
this material?
35
30
25
20
8
Mass (o)
B.
15
10
A
5
5
-
0
0
5
LO
1 2 3 4
Volume (cm)
(1) 1.0 g/cm
(2) 5.0 g/cm
(3) 10.0 g/cm
(4) 20.0 g/cm
2

An ecologist studied the same species of deer during the summer and the winter. she noticed that during the summer, when there was plenty of food, the deer were energetic and playful. however, during winter when food was scarce, the deer moved more slowly and did not run unless they needed to escape a predator. which scientific fact is best supported by her observations?

Which of these parts of the membrane large moecules pass through it ?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these