BIOL 133 Final Exam Questions With
Complete Solutions
a condition in which two alleles for a trait are
different from each other Correct Answers
Heterozygous
a condition in which two alleles for a trait are the
same Correct Answers Homozygous
A fertilized cell that travels down the oviducts and
undergoes cell division; before it becomes a
blastocyst Correct Answers Zygote
a group of organisms within a specific area that are
able to reproduce with each other and produce a
viable and a fertile offspring Correct Answers
species
a life-threatening eating disorder that is
characterized by self-starvation and excessive
weight loss Correct Answers Anorexia
a muscular tube whose function is to conduct food
into the stomach Correct Answers esophagus
a process where the egg completes its second
meiotic division and its haploid chromosomes join
with the haploid chromosomes from the sperm
Correct Answers fertilization
,a protein digesting enzyme Correct Answers
Trypsin enzyme
a reproductive strategy that helps a female ensure
reproductive success by providing her with multiple
mating options (one female; multiple male
partners) Correct Answers Polyandry
a secreted or excreted chemical factor that triggers
a social responds or a change in members of the
same species Correct Answers Pheromones
a situation in which two different versions of a
gene are maintained in a population of organisms
because individuals carrying both versions are
better able to survive than those who have two
copies of either version alone Correct Answers
balanced polymorphism
a small number of individuals become founders of
a large population Correct Answers founder effect
A stationary blood clot Correct Answers Thrombus
a trait or an organ that appears similar in two
unrelated organisms (structures that do not have a
common origin but have the same function) [ex.
bird wings are not homologous to insect wings but
, homologous to human arms, whale flippers, and
bat wings] Correct Answers Analogy
A traveling blood clot Correct Answers Embolus
a variant of natural selection in which one gender
prefers certain traits to be present in their mate
Correct Answers Sexual Selection
after a zygote undergoes cell divisions and is
implanted into the uterine wall, it is called a what?
Correct Answers a blastocyst
all people today are classified as this; our species
of humans first began to evolve nearly 200,000-
300,000 years ago Correct Answers Homo sapiens
allele that expresses itself when present in just one
copy Correct Answers dominant allele
allele that is not expressed in the presence of the
dominant allele Correct Answers Recessive allele
also called the "handy man" because tools were
found with this fossil remain; existed between 2.4
and 1.5 million years ago; brain shape shows
evidence that some speech had developed; about
5' tall and weighed about 100 pounds Correct
Answers Homo habilis
Complete Solutions
a condition in which two alleles for a trait are
different from each other Correct Answers
Heterozygous
a condition in which two alleles for a trait are the
same Correct Answers Homozygous
A fertilized cell that travels down the oviducts and
undergoes cell division; before it becomes a
blastocyst Correct Answers Zygote
a group of organisms within a specific area that are
able to reproduce with each other and produce a
viable and a fertile offspring Correct Answers
species
a life-threatening eating disorder that is
characterized by self-starvation and excessive
weight loss Correct Answers Anorexia
a muscular tube whose function is to conduct food
into the stomach Correct Answers esophagus
a process where the egg completes its second
meiotic division and its haploid chromosomes join
with the haploid chromosomes from the sperm
Correct Answers fertilization
,a protein digesting enzyme Correct Answers
Trypsin enzyme
a reproductive strategy that helps a female ensure
reproductive success by providing her with multiple
mating options (one female; multiple male
partners) Correct Answers Polyandry
a secreted or excreted chemical factor that triggers
a social responds or a change in members of the
same species Correct Answers Pheromones
a situation in which two different versions of a
gene are maintained in a population of organisms
because individuals carrying both versions are
better able to survive than those who have two
copies of either version alone Correct Answers
balanced polymorphism
a small number of individuals become founders of
a large population Correct Answers founder effect
A stationary blood clot Correct Answers Thrombus
a trait or an organ that appears similar in two
unrelated organisms (structures that do not have a
common origin but have the same function) [ex.
bird wings are not homologous to insect wings but
, homologous to human arms, whale flippers, and
bat wings] Correct Answers Analogy
A traveling blood clot Correct Answers Embolus
a variant of natural selection in which one gender
prefers certain traits to be present in their mate
Correct Answers Sexual Selection
after a zygote undergoes cell divisions and is
implanted into the uterine wall, it is called a what?
Correct Answers a blastocyst
all people today are classified as this; our species
of humans first began to evolve nearly 200,000-
300,000 years ago Correct Answers Homo sapiens
allele that expresses itself when present in just one
copy Correct Answers dominant allele
allele that is not expressed in the presence of the
dominant allele Correct Answers Recessive allele
also called the "handy man" because tools were
found with this fossil remain; existed between 2.4
and 1.5 million years ago; brain shape shows
evidence that some speech had developed; about
5' tall and weighed about 100 pounds Correct
Answers Homo habilis
