PPt Arthropod Behavior (Ex 5)

Question 1

Hypothesize

Answer 1

1. Provides a mechanistic explanation for why a set of observations is seen
2. Broad, “Because”, Testable, Falsifiable
3. A history of sports-related head injuries is associated with short-term memory loss in later life because of frequent injuries to the lambic system which is the seat of short-term memory

Question 2

Predict

Answer 2

1. Describes what will occur to the variable being tested in an experiment
2. Specific, Dependent Variable, “If”, Independent Variable
3. If concussions are associated with damage to the limbic system, the MRIs of athletes with a history of concussions will reveal greater damage to the limbic system than a control group without these injuries

Question 3

Test

Answer 3

1. A history of sports-related head injuries is associated with short-term memory loss in later life because of frequent injuries to the limbic system which is the seat of short-term memory
2. What’s our null

Question 4

What do we need to keep in mind with experiments?

Answer 4

1. Repeatable
2. Replication
   2.5 Strength of our data
3. Confounding variables
   3.5 Control
4. Bias
   4.5 Integrity of our data

Question 5

How do we analyze our data?

Answer 5

1. Statistics!
2. Synopsis of our data
   2.5 Mean, range, min, max, standard deviation, variance, etc
3. Relate results back to our hypothesis
   3.5 We never PROVE anything, We either support or fail to support our hypothesis, We either reject or fail to reject our null

Question 6

Arthropods

Answer 6

Invertebrates, with an exoskeleton and a segmented body

Question 7

Taxis

Answer 7

Movement in response to stimulus—do you move if stuff happens

Question 8

Kinesis

Answer 8

Rate of change in direction — how much you accelerate in response to a stimulus

Question 9

Madagascar hissing cockroaches

Answer 9

1. Madagascar hissing cockroaches (Gromphadorhina portentosa) are not the same cockroaches you find in dirty buildings (Periplaneta americana)
2. They groom themselves meticulously and are extremely hygienic
3. They eat fruit and dog kibble, so think of them like very tiny puppies

Question 10

Armadillidium vulgare

Answer 10

1. Armadillidium vulgare is known by many names: pill bug, potato bug, sow bug, Roxy-poly, etc
   1.5 Vulgare is Latin for “common” not “gross”
   Their name means “common little armadillo”
2. They’re actually crustaceans, not insects