Community Interactions

Question 1

2 population growth models

Answer 1

exponential

logistic

Question 2

exponential

Answer 2

idealized, called “r populations” (J-curve)

Question 3

logistic

Answer 3

realized, called “k populations” (S-curve), most common

Question 4

r-selected populations

Answer 4

opportunistic
short maturation and lifespan
many (smaller) offspring
little to no parental care
high death rate
ex: fly, fish

Question 5

k-selected populations

Answer 5

equilibiral
long maturation and lifespan
fewer (larger) offspring
extensive parental care
low death rate
ex: human, lions

Question 6

2 types of environmental resistance

Answer 6

density dependent

density independent

Question 7

density dependent

Answer 7

limited food, water,shelter, prediation, diesase

Question 8

density independent

Answer 8

weather, climate

Question 9

carrying capacity

Answer 9

maximum individuals that an area can sustain

Question 10

5 types of symbiosis

Answer 10

mutualism
commensalism
parasitism
neutralism
competition

Question 11

mutualism

Answer 11

both species benefit (+/+)

Question 12

commensalism

Answer 12

one species benefits and the other is neutral (+/0)

Question 13

parasitism

Answer 13

one species benefits and the other is harmed (+/-)

Question 14

neutralism

Answer 14

both species are neither benefit nor harmed (0/0)

Question 15

2 types of competition

Answer 15

intra-specific

inter-specific

Question 16

intra-specific competition

Answer 16

competiton of resources in organisms of the same species (-/-)

Question 17

inter-specific competition

Answer 17

competition of resources in orgamisns of different species, predator-prey (-/-)

Question 18

2 ways species can reduce competition

Answer 18

resource partitioning

character displacement

Question 19

resource partitioning

Answer 19

species consume slightly different foods or use other resources in slightly dfferent ways (develop niches)

Question 20

character displacement

Answer 20

species tend to diverge in those characteristics that overlap

Question 21

oscillations of popuation size

Answer 21

increases and decrease of predators and prey overtime

Question 22

strategies developed to live

Answer 22

comouflage
weaponry
warnings
shells
stealth
ambush

Question 23

coloration adaptations

Answer 23

aposematic
batesian
mullerian
comouflage
disruptive

Question 24

aposematic

Answer 24

bright spot of warning color poisonous, stay away color

Question 25

batesian

Answer 25

pretends to be poisonous, copy cat

Question 26

mullerian

Answer 26

one species that is not poisonous resembles another species that is poisonous

Question 27

comouflage

Answer 27

ability to blend into an environment

Question 28

disruptive

Answer 28

obscures size or shape, ex:group of zebras

Question 29

demography

Answer 29

factors that affect growth and decline of populations

Question 30

3 types of demography

Answer 30

birth rate
death rate
age structure

Question 31

birth rate

Answer 31

number of offspring produced (natality)

Question 32

death rate

Answer 32

number of organisms that die (mortality)

Question 33

age structure

Answer 33

relative number of individuals of each age

Question 34

survivorship curve

Answer 34

plot of numbers that are still alive at each age

Question 35

type 1

Answer 35

death is more likely at an old age

Question 36

type 2

Answer 36

death is equally likely at all ages

Question 37

type 3

Answer 37

death is more likely at a young age