final bio

Question 1

a gene pool consists of

Answer 1

the total of all alleles in a population

Question 2

evolution occurs

Answer 2

only via natural selection, genetic drift, migration, ….

Question 3

natural selection can only act on traits

Answer 3

that are heritable

Question 4

____ selection favors organisms with phenotypes that are at one extreme relative to the average phenotype

Answer 4

directional

Question 5

which of the following best explains why genetic drift botttlenecks and founder effects are voluntarily important?

Answer 5

both result in small populations that are influenced by genetic drift

Question 6

from an evolutionary perspective behavior can be viewed best as

Answer 6

a trait that can satisfy the three conditions required….

Question 7

which of the following is the best way to distinguish male from female

Answer 7

mobile gametes

Question 8

in a polyandrous mating system

Answer 8

multiple males tend to mate with the same female

Question 9

which if the following is an example of a female mating with a male only after submitting him to a courtship ritual?

Answer 9

a female bower bird

Question 10

because it is possible for a female to mate with multiple males, any of whom could be the father, male mammals and birds will always

Answer 10

have some degree of paternity uncertainty

Question 11

behaviors that do not require environmental input for their development are called

Answer 11

instincts

Question 12

the biological species concept

Answer 12

a species as any group interbreeding species that produce viable offspring

Question 13

prokaryotes are classified into ___ domains

Answer 13

2

Question 14

in one sense, microevolution is ____ and macroevolution is ____

Answer 14

process, result

Question 15

speciation with geographic isolation is called

Answer 15

allopatric speciation

Question 16

which of the following is NOT a prezygotic barrier to interbreeding between different species?

Answer 16

hybrids between the two species are infertile

Question 17

the three most fundamental groups of organisms on the planet are

Answer 17

bacteria, archaea, eukarya

Question 18

pathogenic bacteria are bacteria that

Answer 18

cause disease

Question 19

all of the living organisms that we can see with the naked eye are

Answer 19

in the domain eukarya

Question 20

if there are 800 individuals in a population at the start of a year and during the year 200 offspring are produced in that population then the annual birth rate is

Answer 20

.25

Question 21

life histories are based on

Answer 21

all of the above

Question 22

a population pyramid

Answer 22

reflects the number of individuals in various age groups in a population

Question 23

which of the following is a major tradeoff in life histories

Answer 23

Growth for reproduction

Question 24

one benefit one unaffected

Answer 24

commensalism

Question 25

the pressure flow mechanism in trees explains how

Answer 25

how sap moves through phloem.

Question 26

secondary plant growth causes a plant to

Answer 26

increase in girth

Question 27

which if the following terms includes all of the others in the list

Answer 27

vascular plant

Question 28

which of the following is characteristic of a gymnosperms

Answer 28

they are wind pollinated

Question 29

which of the following is not a factor that limits population growth

Answer 29

all of these factors limit population growth

Question 30

ozone depletion is a cause for concern because

Answer 30

rates of skin cancer are likely to increase

Question 31

which of the following is currently the leading cause of extinction

Answer 31

habitat loss

Question 32

a species found only within a certain region is said to be ___ to that region

Answer 32

endemic

Question 33

biodiversity ___ have been identified based on high biodiversity and imminent threats caused by human activities

Answer 33

hotspots

Question 34

which of the following is an example of an abiotic factor

Answer 34

mean annual rainfall in the rainforest

Question 35

an ecosystem

Answer 35

all living and nonliving things

Question 36

in a population exhibiting logistic growth, what happened when the carrying capacity is exceeded

Answer 36

growth rate becomes negative until within the carrying capacity

Question 37

density dependent and density independent factors influence the growth of population by causing changes in the

Answer 37

birth rate and death rate