FINAL EXAM: CHAPTERS 10–19

QUESTION 1

  1. Seawater and freshwater mix in which coastal region?​
a. ​hydrothermal vents
b. ​coral reefs
c. ​seamounts
d. ​tidal pools
e. estuary​

5 points   

QUESTION 2

  1. What is a transgenic organism?​
a. an organism with multiple copies of the same gene​
b. ​an organism that has genes from another species
c. ​an organism that does not use DNA to specify proteins
d. ​an organism that has had its entire genome sequenced
e. ​an organism that has been DNA profiled

5 points   

QUESTION 3

  1. In a typical predator–prey relationship, ____.
a. the predator exerts selective pressure on its prey
b. the prey exerts selective pressure on its predator
c. the predator will not kill its prey
d. the predator feeds on carcasses
e. predator and prey exert selective pressures on each other

5 points   

QUESTION 4

  1. Red coat is dominant in horses and white coat is recessive. In a cross between a homozygous dominant red-coated horse and a white-coated horse, what genotype(s) would be observed in the offspring?​
a. ​all homozygous recessive
b. ​all homozygous dominant
c. ​half homozygous dominant and half homozygous recessive
d. ​all heterozygous
e. ​half heterozygous and half homozygous dominant

5 points   

QUESTION 5

  1. ​What is one result of the bottleneck effect?
a. ​balanced alleles
b. ​heterozygosity
c. ​decreased genetic diversity
d. ​disruptive selection
e. ​random mating

5 points   

QUESTION 6

  1. ​Two species of toads have been successfully interbred in a laboratory but do not hybridize in nature because one species mates in summer and the other mates in the fall. This is an example of ____ isolation.
a. ​reproductive
b. ​ecological
c. ​inbred
d. ​physical
e. ​genetic

5 points   

QUESTION 7

  1. Which vertebrate is a fish that has a cartilaginous skeleton, no jaws, and a tooth-covered tongue?
a. shark
b. lamprey
c. coelacanth
d. goldfish
e. lungfish

5 points   

QUESTION 8

  1. ____ is the study of body plans and structures.​
a. Evolution​
b. ​Biogeography
c. ​Comparative morphology
d. ​Comparative physiology
e. ​Natural history

5 points   

QUESTION 9

  1. One reason angiosperms are more successful than gymnosperms is because gymnosperms lack _____.​
a. ​seeds
b. ​megaspores
c. ​fruits
d. ​leaves
e. ​wood

5 points   

QUESTION 10

  1. In the 16th century, a Spanish ship explored a Pacific Island that had a small mountain range separating it. Mice that were on the ship escaped onto the island on both sides of the mountain range. After decades of separation, the two populations developed different numbers of chromosomes, resulting in reproductive isolation that prevented any future interbreeding. This speciation event is an example of ____.
a. allopatric speciation
b. sympatric speciation
c. the founder effect
d. inbreeding
e. gene flow

5 points   

QUESTION 11

  1. The only group of plants that produces flowers is the ____.
a. horsetails
b. ferns
c. bryophytes
d. angiosperms
e. gymnosperms

5 points   

QUESTION 12

  1. The nitrogen cycle on land begins with ____.​
a. ​nitrification
b. ​denitrification
c. ​decomposition
d. ​uptake by producers
e. nitrogen fixation​

5 points   

QUESTION 13

  1. The discovery of ____ allowed researchers to cut chromosomes into manageable-sized DNA fragments.
a. single-nucleotide polymorphisms
b. restriction enzymes
c. DNA assembly enzymes
d. fragment-length polymorphisms
e. receptor proteins

5 points   

QUESTION 14

  1. Evergreen broadleaf trees, along with abundant rain, warm temperatures, and consistent day length, characterize the ____ biome.
a. chaparral
b. tropical rain forest
c. temperate deciduous forest
d. temperate grassland
e. boreal forest

5 points   

QUESTION 15

  1. What is a SNP?​
a. a computer chip that recognizes differences in DNA sequences​
b. ​a variation in a single nucleotide of a DNA sequence
c. ​a tool used in DNA research to cut segments of DNA
d. ​a drug developed from DNA technology
e. ​a highly conserved sequence of DNA

5 points   

QUESTION 16

  1. ​The close relationship between ____ and animals can be seen in the similarity of these protists and sponges, simple animals.
a. ​cellular slime molds
b. ​choanoflagellates
c. ​diatoms
d. ​brown and red algae
e. ​flagellates protozoans

5 points   

QUESTION 17

  1. Fungal cell walls consist primarily of ____.​
a. ​cellulose
b. ​lignin
c. ​chitin
d. ​pectin
e. ​protein

5 points   

QUESTION 18

  1. In the universal ABO blood grouping system, there are four phenotypes—A, B, AB, and O—which are determined by three different alleles. The presence of three alleles in the ABO blood grouping system is an example of ____.
a. a polymorphism
b. genetic drift
c. the bottleneck effect
d. a dimorphism
e. the founder effect

5 points   

QUESTION 19

  1. Many species of terns nest on the ground in seabird colonies. However, if nests are too close together, aggression will break out. This tends to produce a(n) ____.
a. near-uniform population distribution
b. opportunity for predation
c. clumped population distribution
d. opportunity for exponential growth
e. random population distribution

5 points   

QUESTION 20

  1. Many soil fungi take part in a mutualistic relationship with plant roots, known as _____.​
a. ​mycelium
b. ​mycorrhiza
c. ​mycotoxin
d. ​lichen
e. ​hypha

 

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