Lab 6

Question 1

what are three requirements for infection to occur

Answer 1

a pathogen
a susceptible host
a conductive environment

Question 2

pathogen population size affected by

Answer 2

factors within hosts and factors that affect how they move between hosts

Question 3

what affects the speed of disease spread

Answer 3

rate of transmission, life history of pathogen, ecology and pop of host

Question 4

size of disease pop inside host depends on

Answer 4

-availability of resources for growth
-competition from other diseases
-hosts immune response

Question 5

distribution and rate of infection of disease can be described by

Answer 5

life history
pathogenicity
transmission rate
host density

Question 6

hantavirus

Answer 6

RNA virus resulting in pulmonary disease in humans.
Vectored by deer mice and the disease ecology of hantavirus in humans is directly linked to ecology of the rodents

Question 7

how to determine if twto factors are related to eachother

Answer 7

-if both variables respond to a common underlying cause, that is not directly causative
-one variable causes direct changes in the other variable, direct cause and effect

Question 8

responding to common underlying cause=

Answer 8

coorelation

Question 9

one variable causes direct change in other variable

Answer 9

cause and effect

Question 10

linear regression

Answer 10

used when already suspect a direct causative effect

Question 11

how does linear regression work?

Answer 11

tries to draw a straight line that minimizes distance of each datapoint from that line
–> called line of “best fit”

Question 12

r^2

Answer 12

coefficient of determination

Question 13

larger r^2(close to 1)=

Answer 13

very strong linear relationship

Question 14

y=a+bx

Answer 14

y==independent variable
x=independent variable
a=y-intercept
b=slope of line

Question 15

LEARN TO DO A REGRESSION GRAPH

Answer 15

OK