Which of the following is not an example of microevolution?

All of the answer choices are examples of microevolution.

Which of the following characteristics do all animals share?

They are multicellular eukaryotes.

When comparing the genetic characteristics between embryonic and adult stem cells, embryonic stem cells

can differentiate into any specialized cells, while adult stem cells can't.

Growth and development of a normal cell differs from a stem cell because

normal cells do not specialize into stem cells.

How can stem cells replace faulty cells in the body?

Stem cell can be coaxed to differentiate into the needed specific cell type

Which is a characteristic of reptiles?

They are ectotherms with lungs.

A common feature of preimplantation genetic diagnosis, genetic testing, and gene therapy is the

use of DNA technology to detect or treat genetic disorders.

What is the potential disadvantage of peacocks enourmous tail feathers to the male?

The feathers require a lot of energy to produce.

Three species of tigers have become extinct due to overharvesting or habitat destruction. This is an example of

increased extinction rate by human activity.

Postzygotic isolation barriers prevent

a hybrid embryo from developing into a fertile adult.

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BSN BIO Final

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Questions 91

Answers

1
Which of the following is not an example of microevolution?
insects becoming resistant to pesticides
All of the answer choices are examples of microevolution.
HIV evolving from chimpanzees
bacteria becoming resistant to antibiotics
2
Snails and squids belong to the phylum
Mollusca.
Porifera.
Annelida.
Cnidaria.
3
Who authored the book On the Origin of Species by Means of Natural Selection?
Charles Darwin
Jean Lamarck
Georges Buffon
Alfred Russel Wallace
4
Evolution occurs
during one lifetime.
at birth of an organism.
when a mutation occurs.
over generations.
5
The process by which new species originate and can no longer interbreed with others in the group is
germination.
extinction.
immigration.
speciation.
6
Which of the following characteristics do all animals share?
They are single-celled eukaryotes.
They are single-celled prokaryotes.
They are multicellular eukaryotes.
They are multicellular prokaryotes.
7
Biologists divide barriers of reproductive isolation into 2 groups
prezygotic and sexual.
postzygotic and geographic.
prezygotic and postzygotic.
sexual and postzygotic.
8
When comparing the genetic characteristics between embryonic and adult stem cells, embryonic stem cells
produced naturally in human development but adult stem cells r from cloning
can't differentiate into any specialized cells, while adult stem cells can.
can differentiate into any specialized cells, while adult stem cells can't.
9
Snakes lack external limbs but their skeletons reveal bones of tiny hindlimbs, what structure is this called?
convergent
homologous
vestigial
homeotic
10
Birds are classified as
amphibians.
mammals.
invertebrate chordates.
reptiles.
11
Growth and development of a normal cell differs from a stem cell because
stem cells are not found in adult organisms.
mature normal cells do not contain DNA.
mature stem cells do not contain DNA.
normal cells do not specialize into stem cells.
12
If similarities between two structures in different organisms reflect independent evolution, these structures are
analogous.
homologous.
heterologous.
homeotic.
13
Which of the following is most likely to be preserved as a fossil?
a complete large organism
a bone or shell
an organism that died on land
a leaf or stem
14
living organisms on Earth have changed; new species have originated and existing species have disappeared This describes
alternation of generations.
extinction.
macroevolution.
speciation.
15
Disruptive
disruptive selection
stabilizing selection
artificial selection
directional selection
16
Which of the following is found in a group other than animals?
They have cell walls.
They are multicellular eukaryotes.
They have a developmental stage called a blastula.
They secrete and bind to an extracellular matrix.
17
If a structure has no function in one species, yet homologous to a functional organ in another, this structure is termed
homologous.
homeotic.
vestigial.
analogous.
18
An invertebrate is an animal that
has an incomplete digestive tract.
does not have a backbone.
has a backbone.
has a complete digestive tract.
19
How can stem cells replace faulty cells in the body?
Stem cells can directly serve as nerve or blood cells.
Stem cell can be coaxed to differentiate into the needed specific cell type
cell can meiotically divide providing more cells to replace faulty cells
cells can mitotically divide providing more cells to replace faulty cells
20
Sexually dimorphic features do not include
colored plumage.
intelligence.
antlers.
body size.
21
The most successful phylum with regards to diversity and numbers is
Arthropoda.
Mollusca.
Platyhelminthes.
Echinodermata.
22
A vertebrate is an animal that
has a complete digestive tract.
does not have a backbone.
does not have true tissues.
has a backbone.
23
The scientific name of humans is Homo sapiens. What is the genus of humans?
Animalia
Homo
Eukarya
sapiens
24
sperm of a bull could not fuse in a lab dish with the eggs of a cow. you would say that the bull and the cow showed?
ecological isolation.
hybrid inviability.
gametic isolation.
temporal isolation.
25
2 dung beetles, one roll dung balls in the day then rest, the other roll at night and rest. they will not breed because
temporal isolation.
sexual selection.
gametic isolation.
mechanical isolation.
26
Which is a characteristic of reptiles?
They have skeletons composed of cartilage.
They are ectotherms with lungs.
They have gills.
27
Stem cell technology has the potential to
All answers are correct.
produce any type of cell in the body.
replace absent or incorrect cells resulting from a genetic disease.
replace damaged cells after an injury.
28
A common feature of preimplantation genetic diagnosis, genetic testing, and gene therapy is the
destruction of faulty DNA in the human genome.
use of DNA technology to detect or treat genetic disorders.
transfer of DNA from transgenic cells.
replacement of faulty DNA in the human genome.
29
Which of the following is not a reptile?
penguin
bat
snake
turtle
30
two population of snails, separated by a water filled valley they could not cross. leads to which speciation?
mechanical isolation.
habitat isolation.
temporal isolation.
hybrid inviability.
31
The femur in a snake and pelvis in a whale are examples of
heterologous structures.
analogous structures.
homologous structures.
vestigial structures.
32
What is the potential disadvantage of peacocks enourmous tail feathers to the male?
There are no disadvantages to having large tail feathers.
The large tail feathers would make it easier to fly.
The feathers require a lot of energy to produce.
The feathers make the male more attractive to other male
33
Three species of tigers have become extinct due to overharvesting or habitat destruction. This is an example of
sympatric speciation.
increased extinction rate by human activity.
allopatric speciation.
mass extinction.
34
The observable properties of genes is an organism's
allele frequency.
gene pool.
phenotype.
macroevolution.
35
Which of the following is not classified as a mammal?
kangaroo
dolphin
penguin
whale
36
Individuals who have one normal and one sickle cell allele resist malaria. This is known as?
dominant advantage.
heterozygote advantage.
homozygote advantage.
heterozygote disadvantage.
37
Which were the first vertebrates to appear on land?
fish
mammals
amphibians
nonavian reptiles
38
The process by which species cease to exist is
speciation.
extinction.
differentiation.
isolation.
39
Which of the following is not a type of prezygotic reproductive barrier?
gametic isolation
hybrid infertility
mechanical isolation
habitat isolation
40
Pinworms and hookworms belong to the phylum
Nematoda.
Annelida.
Platyhelminthes.
Cnidaria.
41
The mode of natural selection in which one extreme phenotype is fittest and the environment selects against the other is
stabilizing selection
directional selection.
disruptive selection.
artificial selection.
42
Applications of DNA technology may result in negative effects, including
insertion into an incorrect location in a chromosome.
triggering cancer.
All answers are correct.
triggering unwanted immune responses.
43
prezygotic
outgroup
allopatric
prezygotic
sympatric
44
Postzygotic isolation barriers prevent
fertilization.
formation of gametes by one of the parents.
male gametes from joining with female gametes.
a hybrid embryo from developing into a fertile adult.
45
Leeches and earthworms belong to the phylum
Annelida.
Porifera.
Platyhelminthes.
Nematoda.
46
Most aquatic animals like fish, penguins and whales all have streamlined bodies and fins, for steering, is a result of?
sexual selection.
artificial selection.
convergent evolution.
analogous selection.
47
Radial=Circle
radial symmetry.
bilateral symmetry.
mirrored symmetry.
longitudinal symmetry.
48
Changes in heritable traits in a population through multiple generations is called
mitosis.
heredity.
evolution.
phenotype.
49
Amphibians, birds, and mammals look the most similar as
fossils.
embryos.
newborns.
adults.
50
stabilizing
directional selection
stabilizing selection
artificial selection
disruptive selection
51
What was most key in the transition of fish into amphibians?
both lungs and fins
fins only
both lungs and limbs
lungs only
52
Corals and jellyfish belong to the phylum
Platyhelminthes.
Annelida.
Cnidaria.
Nematoda.
53
The founder effect occurs when (multi select)
1... Small group of individuals...
4... mating only among themselves.
3... and establish new settlements...
2... leave their home population...
54
The function of vertebrae is to
both protect the brain and nerve cord.
both protect the nerve cord and provide attachment points for muscles.
provide attachment points for muscles only.
protect the nerve chord only.
55
Antibiotic resistance is becoming more common in disease-causing bacteria because
All answers are correct.
some patients do not take the antibiotics as directed.
antibiotics are prescribed for viral infections (due to patients).
antibiotics are used in feed for livestock.
56
Ancestors of giraffes w/shorter neck could not reach branches high up. This lead to __ for giraffes with longer necks
directional selection
sexual selection
stabilizing selection
disruptive selection
57
Mitosis of a stem cell in an embryo results in ______; mitosis of a specialized cell in an embryo results in ______.
one stem cell and one specialized cell; two stem cells
one stem cell and one specialized cell; two specialized cells
two stem cells; one stem cell
two stem cells; one stem cell and one specialized cell
58
Which of the following is a cartilaginous fish?
lungfish
shark
salmon
catfish
59
All cnidarians share the ability to do which of the following?
sting predators and prey
live on land
secrete a thick mantle that sometimes forms a shell
photosynthesize
60
An animal that maintains its body temperature by using heat generated from its own metabolism is a(n)
mesophile.
ectotherm.
endotherm.
thermophile.
61
A sterile mule is produced by mating a horse and a donkey. From this observation you could conclude
that horses and donkeys are the same species.
the DNA sequences of horses and donkeys are more than 97% identical.
that mules are a result of macroevolution.
that horses and donkeys are different species.
62
In cloning the sheep Dolly, a nucleus was implanted into an egg that had it's nucleus removed. The result was __ egg
unfertilized
tetraploid
recombinant
diploid
63
DNA technology can result in
All answers are correct.
cloned pets.
removal of genetic disorders.
plants with an added gene that slows the rate of fruit decay.
64
The wings of a bat and an insect are examples of
homeotic structures.
vestigial structures.
analogous structures.
heterologous structures.
65
The NA bison was hunted to near-extinction in the 1800s, with decreased in genetic diversity is an example of
increased mutation rate.
the founder effect.
the bottleneck effect.
artificial selection.
66
Birds use songs, coloring, and dances to attract mates of their species. This is an example of ___ reproductive barrier
outgroup
prezygotic
sympatric
allopatric
67
bs
longitudinal symmetry.
asymmetry.
mirrored symmetry.
bilateral symmetry.
68
Spiders and scorpions belong to the phylum
Annelida.
Cnidaria.
Arthropoda.
Mollusca.
69
Which of the following is a trait shared by mammals and reptiles that is not shared by the other groups of chordates?
legs
mammary glands
hair
an amnion
70
The mode of natural selection in which extreme phenotypes are less fit than the optimal intermediate phenotype is
disruptive selection.
directional selection.
stabilizing selection.
artificial selection.
71
What are the three major body regions of many arthropods?
head, gastrovascular cavity, and thorax
head, abdomen, and legs
head, gills, and legs
head, thorax, and abdomen
72
Which is a characteristic of the phylum Chordata?
They do not have true tissues.
They have a notochord.
They have a gastrula with only two germ layers.
They have a pseudocoelom.
73
The mode of natural selection in which two or more extreme phenotypes are fitter than the intermediate phenotype is
artificial selection.
directional selection.
stabilizing selection.
disruptive selection.
74
If a sheep and goat are bred, their offspring would die as an embryo. This is an example of a(n)___ reproductive barrier
postzygotic
sympatric
allopatric
prezygotic
75
An example of DNA technology is
sexual reproduction between two fish.
a cat feeding upon a mouse.
a parasitic fungus infecting a bird.
transferring genes from a bacterium to a fish.
76
Small, generation-by-generation changes to a population's gene pool is
macroevolution.
microevolution.
uniformitarianism.
natural selection.
77
The few ancestors of the Galápagos finches who colonized the islands is an example of
the founder effect.
artificial selection.
increased mutation rate.
natural selection.
78
Which of the following is least likely to be preserved as a fossil?
a complete large organism
an organism that died on land
an organ like an eye or lung
a leaf or stem
79
Sponges belong to the phylum
Annelida.
Cnidaria.
Porifera.
Platyhelminthes.
80
Which type of genetic drift occurs when many members of a population die resulting in a great loss of genetic diversity?
the directional effect
the bottleneck effect
the founder effect
the selective effect
81
Sea cucumbers and sea urchins belong to the phylum
Mollusca.
Arthropoda.
Echinodermata.
Nematoda.
82
Ancestors of girraffes with shorter necks could not reach up in the trees, this led to ___ for girraffes w/longer neck
artificial selection
stabilizing selection
directional selection
sexual selection
83
If similarities between two structures in different organisms reflect common ancestry, these structures are
homologous.
homeotic.
vestigial.
heterologous.
84
Every species has a unique two-word name called the
evolutionary tree.
phylogeny.
scientific name.
clade.
85
If an environment changes rapidly, organisms with _____ will be more likely to survive and reproduce.
existing neutral mutations
the ability to adapt their genotype
the ability to produce beneficial mutations
existing beneficial mutations
86
Cloning through DNA technology is most similar to
stem cells' replacement of faulty cells.
meiosis.
asexual reproduction.
sexual reproduction.
87
The entire collection of genes and alleles is a population's
dominant traits.
phenotype.
genotype.
gene pool.
88
Which of the following is a lobe-finned fish?
stingray
lamprey
lungfish
shark
89
The technique CRISPR-Cas9 can be used to
test if an embryo is afflicted with a genetic disorder.
clone an organism from another.
edit specific genes.
identify a missing person from a blood sample.
90
The closest living relatives to humans on the evolutionary tree are
gibbons.
chimpanzees.
homo erectus.
91
Genetically modified bacteria are responsible for producing
All answers are correct.
the amino acid phenylalanine used in the artificial sweetener aspartame.
human insulin to treat diabetes.
blood clotting factors to treat hemophilia.

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