3-Dav-Devonne's Biology Portfolio
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Pertiussis Assignment
Assignments
Semester 1
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Experimental Design
Cellular Biology
Graphing Practice
Biomacromolecules
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Chemistry
The Central Dogma
Enzyme-Controlled Reactions Page
Semester 2
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Cell Division
Mitosis Experimental Design
Cell Cycle and Cancer Lab
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Graphing Practice
Problem 1
A. Make a line graph of the data.
B. What is the dependent variable?
The age of the tree in years.
C. What is the independent variable?
The average thickness of the annual rings.
D. What was the average thickness of the annual rings of 40 year old trees in forest A?
3.5cm
E. Based on this data, what can you conclude about Forest A and Forest B?
The growth of the annual rings is similar throughout their years.
Problem 2
A. Make a line graph of the data.
B. What is the dependent variable?
The number of tadpoles.
C. What is the independent variable?
The Ph of water.
D. What is the average pH in this experiment?
6.75 average pH.
E. What is the average number of tadpoles per sample?
57.66 average # of tadpoles per sample.
F. What is the optimum water pH for tadpole development?
6.5 optimum water pH.
G. Between what two pH readings is there the greatest change in tadpole number?
Between numbers 6 and 6.5.
H. How many tadpoles would you expect to find in water with a pH reading of 5.0?
I would expect about 15 tadpoles in the water.
Problem 3
A. Make a line graph of the data.
B. What is the dependent variable?
Concentration of Ethylene
C. What is the independent variable?
The Number of Days the Apples Take to Mature