WEEK 13 - 14

Question 1

an ancient genus

Answer 1

Magnolia

Question 2

oldest pollinator

Answer 2

wind

Question 3

major pollinator of flowering plants

Answer 3

bees

Question 4

a complex tongue that enables bees to obtain nectar from flowers

Answer 4

proboscis

Question 5

some are so dependent upon one another that were one to disappear, the other would very likely either starve or remain sterile

Answer 5

dependent partnerships

Question 6

these spots are found outside the flower

Answer 6

extrafloral nectaries

Question 7

develop trichomes on the leaves

Answer 7

multiple defenses

Question 8

in some Passiflora the stipules change to look like a butterfly

Answer 8

false larvae

Question 9

visible clues can be almost as important as chemical clues

Answer 9

chameleon shapes

Question 10

attracts animals that carry pollen

Answer 10

nectar

Question 11

are a hollow, horn-like extension of a flower that holds nectar in its base

Answer 11

corolla spurs

Question 12

group of unrelated plant species that benefit each other

Answer 12

plant guild

Question 13

gene pool is conserved and utilized

Answer 13

genetic conservation

Question 14

conservation od biological diversity outside of natural habitats

Answer 14

ex situ

Question 15

conservation of ecosystems and habitats

Answer 15

in situ

Question 16

diversity from different species present in an ecosystem

Answer 16

interspecific diversity

Question 17

variation in the relative frequency of different genotypes in a small population

Answer 17

genetic drift

Question 18

high levels of homozygosity and relatively little genetic variation within single populations

Answer 18

self-pollinating plants

Question 19

inbreeding results reduced fitness and lower survival rates among offspring

Answer 19

outbreeding species

Question 20

increased homozygosity for deleterious alleles

Answer 20

inbreeding depression

Question 21

number of deleterious alleles present in the gene pool of a population

Answer 21

genetic load

Question 22

main route for gene flow

Answer 22

migration

Question 23

loss of previously existing genetic diversity from a population or species

Answer 23

genetic erosion

Question 24

boosting the numbers of a declining population by transplanting and releasing individuals of the same species captures or collected from more numerous populations elsewhere

Answer 24

population augmentation

Question 25

gene pool of the original population is overwhelmed by different genotypes from the transplanted individuals and loses its identity

Answer 25

genetic swamping

Question 26

reduced fitness occurs in the progeny of matings between genetically diverse individuals

Answer 26

outbreeding depression

Question 27

group of alleles that have evolved to work together to produce the best level of fitness in an individual

Answer 27

coadapted gene complexes

Question 28

plays an important role in the survival and adaptability of a species

Answer 28

genetic diversity

Question 29

changes in allele frequencies due to random chance

Answer 29

genetic drift

Question 30

most genetic variation is caused by the accumulation of neutral mutations that got high frequencies through genetic drift

Answer 30

neutral theory of evolution

Question 31

new mutations can spread throughout a population because of genetic drift

Answer 31

non-darwinian evolution