Question

How does the use of a scanning electron microscope differ from that of a transmission electron microscope?

Answer 1

. A scanning electron microscope can produce only a two-dimensional black and white image, while a transmission electron microscope can produce a three-dimensional color image.
b. A scanning electron microscope can be used to study live specimens, while a transmission electron microscope would harm the specimens that are being viewed.
c. A scanning electron microscope can be used to study the details of a specimen's surface, while a transmission electron microscope can be used to study the internal structures of a cell.
d. A scanning electron microscope can produce images of specimens prepared in liquid, while a transmission electron microscope requires all water to be removed from specimens first.

Answer 2

I think its c....

Answer 3

I think so to

Answer 4

Okay cool c:

Answer 5

Can you help me with another?

Answer 6

sure

Answer 7

As liquid water freezes, the molecules arrange themselves in a way that takes up more space than liquid water. What would most likely occur if the arrangement of frozen water molecules required less space than that of liquid water molecules?

Answer 8

a. The density of ice would be greater than the density of liquid water, and ice would not float.
b. Ice would form in layers, and liquid water would get trapped in between the layers.
c. Liquid water would have a higher specific heat, making it less likely to undergo vaporization.
d. The freezing point of water would decrease, making ice more difficult to form.

Answer 9

I think its A

Answer 10

yea

Answer 11

okay thanks c: one more?

Answer 12

yes!

Answer 13

In which of the following ways is the function of the surface of a microsphere similar to the function of an actual cell membrane?

Answer 14

a. Both make it possible for the conditions in the interior to be different from the conditions outside.
b. Both provide a barrier that keeps water from flowing across it so the interior remains dry.
c. Both separate the RNA that forms in the interior from any RNA that might form in the environment.
d. Both can actively move molecules into the interior or out into the surrounding environment.

Answer 15

I am not really sure what the answer is... XP maybe c

Answer 16

Both can actively move molecules into the interior or out into the surrounding environment.

Answer 17

ohhhhh okay thanks :DD

Answer 18

welcome

Answer 19

Its defiantly C.

Answer 20

how?