Name
Date
Period
On an expedition around the world, several scientists collected the venom of various snakes. One of the
tests that the scientists conducted determined the toxicity of the venom of each snake. Other data
obtained by the scientists include the mortality percentage, or relative death rate, from the bites of various
snakes.
The snakes observed were the (1) southern United States copperhead, (2) western diamondback
rattlesnake, (3) eastern coral snake, (4) king cobra, (5) Indian krait, (6) European viper, (7) bushmaster, (8)
fer-de-lance, (9) black-necked cobra, and (10) puff adder.
The mortality percentage of people bitten by the snakes varied from 100% to less than 1% . The
scientists noted the mortality percentage for each of the snakes was (1) less than 1%, (2) 5-15%, (3) 5-20%,
(4) greater than 40%, (5) 77%, (6) 1-5%, (7) usually 100%, (8) 10-20%, (9) 11-40%, and (10) 11-40%.
Create a table to display the data above:
The mortality percentage of venomous snakes
Southern US Copperhead
Less than 1%
Western Diamondback
5-15%
Easter Coral Snake
5-20%
King Cobra
Greater than 40%
Indian Krait
77%
European Viper
1-5%
Bushmaster
Usually 100%
Fer-de-Lance
10-20%
Black-necked Cobra
11-40%
Puff Adder
11-40%
1) Which snake’s venom has the highest mortality rate?
Bushmaster
2) Which snakes venom has the lowest mortality rate?
Southern US Copperhead
3) From the information recorded, can you determine the snake whose venom works the most rapidly? The
least rapidly?
Through deductive reasoning we and infer the Bushmaster would be the most rapidly, as most people die
before they can get help or anti-venom. It is difficult to infer the least rapidly because the low death rate
could be due to either the strength of the venom or the slow moving venom. From the data we can not tell
which factor is at play.
4) Which two snakes venom have the same mortality rate?
Black-necked cobra and Puff adder
5) How many snakes were observed?
10
In an experiment on plant growth and over-crowding, plants of the following heights are in three equal sized
containers.
Flowerpot 1 : 20cm and 18cm
Flowerpot 2: 12cm, 10.8 cm, 11.2 cm, and 12.4 cm
Flowerpot 3: 7.5 cm, 8 cm, 6 cm, 6,2 cm, 5.8 cm, and 7.3 cm
What is the average height of the plants in each flowerpot?
Flowerpot 1 = 19cm, Flowerpot 2 = 11.6cm, Flowerpot 3 = 6.8cm
In which flowerpot did the pants grow the tallest? Explain.
The plants in flowerpot 1 grew the tallest. They averaged 19cm in height compared to 11.6 cm average in
pot 2 and 6.8cm average in pot 3. This shows that they grew 7.4cm – 12.2cm taller on average than the
more crowded plants.
In a sample group of students, the number of breaths per
results were as follows:
At rest
Males: 10.1, 12, 12.5, 10.2, 13.1, 11.8
Females: 10.4, 13, 12.1, 11.9, 10.5 12.8
minutes was taken at rest and after exercise. The
After exercise:
Males: 18.9, 23.7, 22.6, 21.3, 19.2, 20.6
Females: 25, 26.7, 29, 35.3, 33.1, 31.7
1) What is the averages number of breaths per minute for males at rest?11.6 breaths/min
Females at rest? 11.8 breaths/min
2) What is the average number of breaths per minute for males after exercise?21.1 breaths/min
Females after exercise? 30.1 breathes/min
3) How many students make up the sample group? 12 studnents (6 male, 6 female)
4) What is the average number of breaths per minute for the entire group at rest? 11.7 breaths/min
After exercise? 25.6 breaths/min
5) Do males or females take more breaths per minute at rest? females
After exercise? females
Diabetes is a disease affecting the insulin
producing glands of the pancreas. If there is
not enough insulin being produced by these
cells, the amount of glucose in the blood will
remain high. A blood glucose level above 140
for an extended period of time is not
considered normal. This disease, if not
brought under control, can lead to severe
complications and even death.
What is the IV?
Time after eating
What is the DV?
Glucose levels
Which of these individuals has diabetes? How can you tell?
Person B had diabetes because their blood sugar levels are still dangerously high several hours after
eating, indicating that insulin is not being released to break down the sugar.
What units are used to measure glucose levels? An hour after eating, how many mg/L does person A
have in their bloodstream? mg/dL - milligrams per deciliter. Person A has 155mg in 1 deciliter of blood
an hour after eating.
Draw a complete graph to represent the data given
The effect of meal consumption on blood sugar levels
300
Blood sugar mg/dL
250
200
150
100
50
0
0
0.5
1
1.5
2
2.5
Hours after Eating
Person A
Person B
3
3.5
4
4.5