©BRIGHTSTARS 2024/2025 ALL RIGHTS RESERVED.
CRST 290 - Exam #2 Questions And Correct
Answers 100% Verified.
Who collected specimens in the Galapagos? - Answer✔Charles Darwin
Where are the Galapagos Islands? - Answer✔Off the coast of Ecuador
Who recognized that Darwin's collection of birds were all just different types of finches? -
Answer✔John Gould
What incident caused Darwin to lose his faith? - Answer✔The death of his 8 year old daughter
Who were the two people that Darwin was primarily influenced by? - Answer✔Charles Lyell
and Thomas Malthus
What did Charles Lyell write that influenced Darwin? - Answer✔Principles of Geology
What did Thomas Malthus write that influenced Darwin? - Answer✔Principle of Population
What did the Principle of Population state? - Answer✔"Populations increase exponentially,
therefore resources increase"
When did Darwin write "Origin of Species"? - Answer✔1859
Darwin suggested that all living things share ______? - Answer✔a common ancestor
Darwin proposed _________ ________ was responsible for new species - Answer✔Natural
selection
T or F: In his book "Origin of Species", Darwin mentions how species originated -
Answer✔False; He never stated how species originated
Darwin's first observation was that: _________ exists in all natural populations -
Answer✔Variation
Darwin's second observation was that: Reproduce beyond capacity of _______ -
Answer✔Resources
3rd: Resources are __________ - Answer✔Limited
4th: Most ___________ variations survive - Answer✔Advantageous
5th: Natural selection is a ________ _________ - Answer✔Passive Process
1|Page
, ©BRIGHTSTARS 2024/2025 ALL RIGHTS RESERVED.
What are the 3 components of evolution? - Answer✔1) Heredity
2) Variation among individuals
3) Competition for resources
What do homologous chromosomes contain? - Answer✔Genes that code for the same traits
What are different forms of the same trait? - Answer✔Alleles
What is the belief that offspring have traits intermediate or mixed from parents? -
Answer✔Blending
What monk performed blending experiments using pea plants? - Answer✔Gregor Mendel
What is the word for "same allele"? - Answer✔Homozygous
What is the word for "different allele"? - Answer✔Heterozygous
What does the Homozygous Cross state? - Answer✔All offspring are like dominant parent
What parent has genes that are always expressed? - Answer✔Dominant
What parent has genes that may not be expressed? - Answer✔Recessive
In the next generation, the Dominant:Recessive ratio is __:__? - Answer✔3:1
What states that two organisms can have many different combinations of offspring? -
Answer✔Variation
Genetic variation leads to _________ diversity? - Answer✔Greater
T or F: More variation exists in a population than in an individual - Answer✔True
Possible variation of offspring is limited by the __________ of the parents - Answer✔Genotype
Mutations can generate new traits but the cost is a loss of _________ - Answer✔Information
What theory states that environmental conditions favor particular traits? - Answer✔Natural
Selection
Individuals with favorable traits have _____ offspring - Answer✔More
What states that specialized organisms tend to lose genetic variability? - Answer✔Adaptation
Specialization reduces future _________ - Answer✔Adaptability
Reduced genetic variability results in _________? - Answer✔Loss of information
What is Creation's "just so" story? - Answer✔God made each kind separately with a range of
variation possible
2|Page
CRST 290 - Exam #2 Questions And Correct
Answers 100% Verified.
Who collected specimens in the Galapagos? - Answer✔Charles Darwin
Where are the Galapagos Islands? - Answer✔Off the coast of Ecuador
Who recognized that Darwin's collection of birds were all just different types of finches? -
Answer✔John Gould
What incident caused Darwin to lose his faith? - Answer✔The death of his 8 year old daughter
Who were the two people that Darwin was primarily influenced by? - Answer✔Charles Lyell
and Thomas Malthus
What did Charles Lyell write that influenced Darwin? - Answer✔Principles of Geology
What did Thomas Malthus write that influenced Darwin? - Answer✔Principle of Population
What did the Principle of Population state? - Answer✔"Populations increase exponentially,
therefore resources increase"
When did Darwin write "Origin of Species"? - Answer✔1859
Darwin suggested that all living things share ______? - Answer✔a common ancestor
Darwin proposed _________ ________ was responsible for new species - Answer✔Natural
selection
T or F: In his book "Origin of Species", Darwin mentions how species originated -
Answer✔False; He never stated how species originated
Darwin's first observation was that: _________ exists in all natural populations -
Answer✔Variation
Darwin's second observation was that: Reproduce beyond capacity of _______ -
Answer✔Resources
3rd: Resources are __________ - Answer✔Limited
4th: Most ___________ variations survive - Answer✔Advantageous
5th: Natural selection is a ________ _________ - Answer✔Passive Process
1|Page
, ©BRIGHTSTARS 2024/2025 ALL RIGHTS RESERVED.
What are the 3 components of evolution? - Answer✔1) Heredity
2) Variation among individuals
3) Competition for resources
What do homologous chromosomes contain? - Answer✔Genes that code for the same traits
What are different forms of the same trait? - Answer✔Alleles
What is the belief that offspring have traits intermediate or mixed from parents? -
Answer✔Blending
What monk performed blending experiments using pea plants? - Answer✔Gregor Mendel
What is the word for "same allele"? - Answer✔Homozygous
What is the word for "different allele"? - Answer✔Heterozygous
What does the Homozygous Cross state? - Answer✔All offspring are like dominant parent
What parent has genes that are always expressed? - Answer✔Dominant
What parent has genes that may not be expressed? - Answer✔Recessive
In the next generation, the Dominant:Recessive ratio is __:__? - Answer✔3:1
What states that two organisms can have many different combinations of offspring? -
Answer✔Variation
Genetic variation leads to _________ diversity? - Answer✔Greater
T or F: More variation exists in a population than in an individual - Answer✔True
Possible variation of offspring is limited by the __________ of the parents - Answer✔Genotype
Mutations can generate new traits but the cost is a loss of _________ - Answer✔Information
What theory states that environmental conditions favor particular traits? - Answer✔Natural
Selection
Individuals with favorable traits have _____ offspring - Answer✔More
What states that specialized organisms tend to lose genetic variability? - Answer✔Adaptation
Specialization reduces future _________ - Answer✔Adaptability
Reduced genetic variability results in _________? - Answer✔Loss of information
What is Creation's "just so" story? - Answer✔God made each kind separately with a range of
variation possible
2|Page
