Bio 204 Pre Recs
1. Based on your background in chemistry, what is the volume of water you
need to add to 10 milliliters of a 10% w/v sucrose (table sugar) solution to dilute
it to 2% w/v sucrose solution? Note: assume the volumes are additive.
10 ml of water
50 ml of water
40 ml of water
30 ml of water
100 ml of water
: 40 ml of water
2. What is the magnification of a specimen under a microscope with 10X oculars
and a 40X objective lens?
400
1/8
,40
0.25
160
30: 400
3. Based on the information about the Vernier caliper, see image in the Back-
ground page of Lab 1.2, which part of the tool would you position on the inside
of the temporal fenestra (opening) of an alligator skull (see image) to measure
its diameter?
lock screw
lower jaws
Vernier scale
depth probe
upper jaws: upper jaws
4. Which of the following is FALSE about the living organism, Mytilus edulis, that
2/8
, you will observe in this lab?
The organism of study belongs to the invertebrate phylum Mollusca.
3/8
1. Based on your background in chemistry, what is the volume of water you
need to add to 10 milliliters of a 10% w/v sucrose (table sugar) solution to dilute
it to 2% w/v sucrose solution? Note: assume the volumes are additive.
10 ml of water
50 ml of water
40 ml of water
30 ml of water
100 ml of water
: 40 ml of water
2. What is the magnification of a specimen under a microscope with 10X oculars
and a 40X objective lens?
400
1/8
,40
0.25
160
30: 400
3. Based on the information about the Vernier caliper, see image in the Back-
ground page of Lab 1.2, which part of the tool would you position on the inside
of the temporal fenestra (opening) of an alligator skull (see image) to measure
its diameter?
lock screw
lower jaws
Vernier scale
depth probe
upper jaws: upper jaws
4. Which of the following is FALSE about the living organism, Mytilus edulis, that
2/8
, you will observe in this lab?
The organism of study belongs to the invertebrate phylum Mollusca.
3/8
