BIOL 1407 CHAPTER 22 EXAM
QUESTIONS AND ANSWERS. VERIFIED
2026.
Why is evolution considered a theory? - ANS 1. Because it helps explain a very wide range of
observations.
2. Because it is supported by a large body of evidence.
Heritable change in traits of a population from one generation to the next is called? -
ANS Evolution
Why is the theory of evolution a unifying theme in biology? - ANS It explains the diversity of
life.
Small-scale changes in a single gene or allele frequencies of a population are termed? -
ANS Microevolution
Large-scale patterns such as formation of a new species are referred to as? -
ANS Macroevolution
Recently, _______________ sequencing has provided detailed insights into the evolutionary
history of species. - ANS DNA
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,A group of related organisms that share a distinctive form constitute a(n) ______________? -
ANS Species
All members of a species that live in the same area and have the opportunity to _____________
is a population. - ANS Interbreed
What was typical of early ideas about the origin and diversity of species? - ANS Species were
regarded as never-changing entities.
Evolution is supported by a substantial body of evidence and explains a wide range of
observations; thus it is considered a scientific ___________________. - ANS Theory
In the 1600s, ideas about the living world dramatically changed as scholars developed the basis
of _______________. - ANS Empirical and scientific thinking.
Some scientists believe that nothing in biology makes sense unless viewed in the light of the
theory of evolution; why? - ANS Evolution provides a framework for understanding all of the
diversity of life on Earth.
In the 1600s, scholars using ____________ thought rather than religion or philosophy began to
rely on observation to look for the basic rationale behind a process. - ANS Empirical
What technology has recently revealed the evolutionary history of many species by looking at
the molecular level? - ANS DNA sequencing
What was John Ray's major contribution to early biological thought? - ANS He developed an
early classification system for plants and animals based on anatomy and physiology.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, The process of evolution at the level of genes and proteins is termed _____________ evolution.
- ANS Molecular
Early thinkers about the diversity of life on Earth were strongly influenced by philosophy and
religion, and regarded species as? - ANS Static and unchanging
The modern concept of a species, which was based on the capability of individuals of the same
species to interbreed, was introduced by __________ ____________? - ANS John Ray
When did European scholars first begin to apply empirical and scientific thought to their study
of biological phenomena? - ANS The 1600s
John Ray's concept of a species was based on the observation that individuals of one species do
not ________________ with individuals of another species. - ANS Interbreed
What type of thought relies on observation to form an idea or hypothesis about a natural
phenomenon? - ANS Empirical
Carolus Linnaeus further developed the system for the ______________ of living things
proposed by John Ray. - ANS Classification
The first scientist to carry out a thorough study of the living world by developing a classification
system for plants and animals was __________ __________. - ANS John Ray
The major contribution of the work of Ray and Linnaeus was that it helped scholars to perceive
___________. - ANS Similarities and differences among living organisms.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS AND ANSWERS. VERIFIED
2026.
Why is evolution considered a theory? - ANS 1. Because it helps explain a very wide range of
observations.
2. Because it is supported by a large body of evidence.
Heritable change in traits of a population from one generation to the next is called? -
ANS Evolution
Why is the theory of evolution a unifying theme in biology? - ANS It explains the diversity of
life.
Small-scale changes in a single gene or allele frequencies of a population are termed? -
ANS Microevolution
Large-scale patterns such as formation of a new species are referred to as? -
ANS Macroevolution
Recently, _______________ sequencing has provided detailed insights into the evolutionary
history of species. - ANS DNA
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
,A group of related organisms that share a distinctive form constitute a(n) ______________? -
ANS Species
All members of a species that live in the same area and have the opportunity to _____________
is a population. - ANS Interbreed
What was typical of early ideas about the origin and diversity of species? - ANS Species were
regarded as never-changing entities.
Evolution is supported by a substantial body of evidence and explains a wide range of
observations; thus it is considered a scientific ___________________. - ANS Theory
In the 1600s, ideas about the living world dramatically changed as scholars developed the basis
of _______________. - ANS Empirical and scientific thinking.
Some scientists believe that nothing in biology makes sense unless viewed in the light of the
theory of evolution; why? - ANS Evolution provides a framework for understanding all of the
diversity of life on Earth.
In the 1600s, scholars using ____________ thought rather than religion or philosophy began to
rely on observation to look for the basic rationale behind a process. - ANS Empirical
What technology has recently revealed the evolutionary history of many species by looking at
the molecular level? - ANS DNA sequencing
What was John Ray's major contribution to early biological thought? - ANS He developed an
early classification system for plants and animals based on anatomy and physiology.
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, The process of evolution at the level of genes and proteins is termed _____________ evolution.
- ANS Molecular
Early thinkers about the diversity of life on Earth were strongly influenced by philosophy and
religion, and regarded species as? - ANS Static and unchanging
The modern concept of a species, which was based on the capability of individuals of the same
species to interbreed, was introduced by __________ ____________? - ANS John Ray
When did European scholars first begin to apply empirical and scientific thought to their study
of biological phenomena? - ANS The 1600s
John Ray's concept of a species was based on the observation that individuals of one species do
not ________________ with individuals of another species. - ANS Interbreed
What type of thought relies on observation to form an idea or hypothesis about a natural
phenomenon? - ANS Empirical
Carolus Linnaeus further developed the system for the ______________ of living things
proposed by John Ray. - ANS Classification
The first scientist to carry out a thorough study of the living world by developing a classification
system for plants and animals was __________ __________. - ANS John Ray
The major contribution of the work of Ray and Linnaeus was that it helped scholars to perceive
___________. - ANS Similarities and differences among living organisms.
3 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
