Lesson 9

Question 1

how does species interaction affect population dynamics?

Answer 1

• influences the process of birth and death

- influence the survival and reproduction of individuals

Question 2

classifications of nature of interaction

Answer 2

neutral, positive, negative

Question 3

this plays an important role in evolution

Answer 3

natural selection

Question 4

interactions among species involve ____

Answer 4

a diversity of physiological process and behavioral activities

Question 5

these are affected by phenotypic characteristics

Answer 5

physiological and behavioral

Question 6

process in which two species undergo reciprocal evolutionary change

Answer 6

coevolution

Question 7

two responses involved in coevolution

Answer 7

counter adaptive and adaptive changes

Question 8

this change is often seen in predator-prey relationships

Answer 8

counter adaptive change

Question 9

this change is often seen between plants and pollinators

Answer 9

adaptive change

Question 10

characteristics that attract animals in pollination

Answer 10

bright colored flowers and scents

Question 11

rewards during pollination

Answer 11

nectar and pollen

Question 12

a sugar rich liquid produced in glands

Answer 12

nectar

Question 13

effects of coevolution

Answer 13

-Changes in the phenotype
can limit that ability of a
species to engage in similar
interactions with other
species
-The increase in bill size for
the hummingbird will limit its
ability to feed in smaller
flowers

Question 14

Interactions that negatively affect
both species involved can lead to
divergence of phenotypic
characteristics

Answer 14

The divergence reduces the

intensity of the interaction

Question 15

The Nature of species Interaction Can

Vary across Geographic Landscapes: true or false

Answer 15

true

Question 16

Variation in Physical Environmental

Conditions can lead to____

Answer 16

variation in phenotypic characteristics

Question 17

These species are more likely to
have a broader range of biotic
interactions

Answer 17

Greater diversity of
competitors, predators,
pathogens
○ Can lead to different
selective pressures and
adaptations to the local
environment

Question 18

the relationship of mycorrhizal fungi with a low soil nutrient plant?

Answer 18

positive

Question 19

The fungus becomes a burden

overtime if____

Answer 19

the soil nutrient
concentration becomes too high
since it occupies carbon which
affects the growth of the plant

Question 20

three diffuse interactions:

Answer 20

competitive, mutualistic, covevolution

Question 21

is
the range physical and chemical
conditions under which that species
is able to survive and reproduce

Answer 21

ecological niche

Question 22

two kinds of niche

Answer 22

fundamental and realized

Question 23

The portion
of the fundamental niche that
a species actually uses as a
result of interactions with
other species

Answer 23

realized

Question 24

Positive interactions can also modify

a species’ fundamental niche

Answer 24

mutualism and commensalism

Question 25

one
species gives rise to a number of
species that use different parts of
the environment, such as habitats or
resources

Answer 25

adaptive radiation

Question 26

• The study of the
  ecology or organisms in the contest
  of the urban environment

Answer 26

urban ecology

Question 27

Urban expansions leads to

Answer 27

Large local extinction rates
○ Elimination of the majority of
native species