BIO 156 EXAM 1 PRACTICE 84 FINAL PAPER
2026 COMPLETE ANSWERS VERIFIED
◉ Explain 1 way that the scientific method helps you "avoid being
misled" as you try to answer questions. Answer: Provides a time-
tested SYSTEMATIC METHOD to follow
◉ Giga Answer: x 1,000,000,000
◉ nano Answer: x 0.000000001(one-billionth)
◉ milli Answer: x 0.001(one-thousandth)
◉ deka Answer: x 10
◉ centi Answer: x 0.01 (0ne-hundredth)
◉ Why is the metric system so much better than the English
(Imperial) measuring system? Answer: -Based on powers of 10
-Completed in 1790
,◉ What does my 10 kg cat "Mouser" weigh in ENGLISH POUNDS?
Answer: 10 kg X 2.2 pounds/kg = 22 lbs
◉ How is the weight/mass of one GRAM defined in the METRIC
system? Answer: The CENTRAL UNIT "GRAM" is defined as the
weight/mass of 1ml of liquid water.
◉ What is the APPROXIMATE weight of a 2- liter bottle of DIET
coke? Answer: 2 kilograms
◉ In the Centigrade temperature scale, what is the BOILING POINT
of water? Answer: -100 ^o Celsius
◉ What is human body temperature in centigrade degrees? Answer:
-37 ^o Celsius
◉ What is human body temperature in F? Answer: 98.6 F
◉ How are the metric units for LENGTH and VOLUME related?
Answer: 1 cubic centimeter [cc, cm3] = 1 ml
1 cubic decimeter (1dm3) = 1 L
,◉ What is a micrometer? Answer: A micrometer is a unit of LENGTH
measurement in the metric system
equal to 1,000,000th of a meter. (one-millionth, 0.000001, 10-6)
◉ What is a MENISCUS and what is the "MENISCUS RULE"? Answer:
The MENISCUS is the CONCAVE surface depression in the
surface of water in a GRADUATED CYLINDER or PIPETTE.
The MENISCUS RULE states that you should read the volume
at the BOTTOM of the meniscus.
◉ Why would you push the TARE button on the digital balance?
EXPLAIN how this TARE technique could help you to avoid doing
some MATH (!). Answer: To zero out the balance if it's not reading
zero
Remove the weight of
weighing paper or weigh Boat from your measurement.
◉ What is an atom or molecule? Why do biologists need to know
about Atoms and molecules? Answer: -An atom is the basic "building
block" of all matter
, -Because all organisms are made of atoms (and molecules)
-Because they are the building blocks of life
◉ A researcher decides to study if ALKA SELTZER dissolves faster in
DISTILLED water or TAP water.
What is the INDEPENDENT VARIABLE?
What is the DEPENDENT VARIABLE? Answer: -IV: type of water
-DV: time to dissolve
◉ HOW MANY covalent bonds does CARBON form Answer: 4
◉ LABEL the following statements with an H if they are hypotheses
and P if they are predictions
____ If the null hypothesis is "true", then when we dissolve one tablet
of generic alka seltzer In 250 mL of water at 50C and do the same for
350C, there will be no difference in the Time to dissolve in both
beakers.
2026 COMPLETE ANSWERS VERIFIED
◉ Explain 1 way that the scientific method helps you "avoid being
misled" as you try to answer questions. Answer: Provides a time-
tested SYSTEMATIC METHOD to follow
◉ Giga Answer: x 1,000,000,000
◉ nano Answer: x 0.000000001(one-billionth)
◉ milli Answer: x 0.001(one-thousandth)
◉ deka Answer: x 10
◉ centi Answer: x 0.01 (0ne-hundredth)
◉ Why is the metric system so much better than the English
(Imperial) measuring system? Answer: -Based on powers of 10
-Completed in 1790
,◉ What does my 10 kg cat "Mouser" weigh in ENGLISH POUNDS?
Answer: 10 kg X 2.2 pounds/kg = 22 lbs
◉ How is the weight/mass of one GRAM defined in the METRIC
system? Answer: The CENTRAL UNIT "GRAM" is defined as the
weight/mass of 1ml of liquid water.
◉ What is the APPROXIMATE weight of a 2- liter bottle of DIET
coke? Answer: 2 kilograms
◉ In the Centigrade temperature scale, what is the BOILING POINT
of water? Answer: -100 ^o Celsius
◉ What is human body temperature in centigrade degrees? Answer:
-37 ^o Celsius
◉ What is human body temperature in F? Answer: 98.6 F
◉ How are the metric units for LENGTH and VOLUME related?
Answer: 1 cubic centimeter [cc, cm3] = 1 ml
1 cubic decimeter (1dm3) = 1 L
,◉ What is a micrometer? Answer: A micrometer is a unit of LENGTH
measurement in the metric system
equal to 1,000,000th of a meter. (one-millionth, 0.000001, 10-6)
◉ What is a MENISCUS and what is the "MENISCUS RULE"? Answer:
The MENISCUS is the CONCAVE surface depression in the
surface of water in a GRADUATED CYLINDER or PIPETTE.
The MENISCUS RULE states that you should read the volume
at the BOTTOM of the meniscus.
◉ Why would you push the TARE button on the digital balance?
EXPLAIN how this TARE technique could help you to avoid doing
some MATH (!). Answer: To zero out the balance if it's not reading
zero
Remove the weight of
weighing paper or weigh Boat from your measurement.
◉ What is an atom or molecule? Why do biologists need to know
about Atoms and molecules? Answer: -An atom is the basic "building
block" of all matter
, -Because all organisms are made of atoms (and molecules)
-Because they are the building blocks of life
◉ A researcher decides to study if ALKA SELTZER dissolves faster in
DISTILLED water or TAP water.
What is the INDEPENDENT VARIABLE?
What is the DEPENDENT VARIABLE? Answer: -IV: type of water
-DV: time to dissolve
◉ HOW MANY covalent bonds does CARBON form Answer: 4
◉ LABEL the following statements with an H if they are hypotheses
and P if they are predictions
____ If the null hypothesis is "true", then when we dissolve one tablet
of generic alka seltzer In 250 mL of water at 50C and do the same for
350C, there will be no difference in the Time to dissolve in both
beakers.
