Population and Ecology Ch.19 Part 1

Question 1

What is population size

Answer 1

total number of individuals

Question 2

Which population is more resilient?

Question 3

What is population density?

Answer 3

number of individuals per unit area

Question 4

Which organisms can be densely or sparsely distributed

Answer 4

smaller organisms tend to be more densely distributed

Question 5

What are the 3 methods biologist use to estimate population size

Answer 5

Quadrat, Transect, Mark and recapture

Question 6

3 main patterns of spacing of a population

Answer 6

Clumped, Uniform, Random

Question 7

What causes spacing

Answer 7

resource availability

Question 8

(Survivorship curve) Type 1- how many offspring and type of care

Answer 8

produce few offspring and provide good care

Question 9

(Survivorship curve) Type 3- how many offspring and type of care

Answer 9

produce large numbers of offspring but, provide very little or no care for them

Question 10

A curve that is J shaped is what kind of growth?

Answer 10

exponential growth (resources are unlimited)

Question 11

A curve that is S shaped is what kind of growth?

Answer 11

logistic growth (resources are limited)

Question 12

What are 4 factors that that influence how fast a population grows

Answer 12

• Birth rate
• Mortality (death rate)
• Emigration (the number of individuals moving away from a population)
• Immigration (the number of individuals moving to a population)

Question 13

How are individual moving when Emigrating?

Answer 13

individuals moving away from a population

Question 14

How are individuals moving when immigrating?

Answer 14

individuals moving to a population

Question 15

What natural abiotic events can limit population size?

Question 16

What biotic events can limit population?

Question 17

What is carrying capacity?

Answer 17

maximum population size that a particular environment can support

Question 18

When human population grows animal ______ increases?

Question 19

Quadrats, transect, and mark and recapture sampling are all used to what?
a. Estimate population size
b. Determine mortality rate
c. Determine birth rates

Answer 19

a. Estimate population size

Question 20

The human population currently shows
a. Declining growth
b. Exponential growth
c. Logistic growth

Question 21

The maximum population size that a particular environment can support is called
a. Exponential growth
b. Carrying capacity
c. Logistical growth
d. Density

Answer 21

b. Carrying capacity