BIO 243
BIO 243 Final Exam Review and
Practice Test Bank – Updated
2025 Questions with Fully Verified
Correct Solutions | High-Scoring
A+
Theme 3: what is evolution?
Most of life's history and diversity, is _____. –
- answ✔️✔️✔️Microbial;
Where does biological diversity come from?
How many species have been described?
For every species existing today, how many have gone extinct since the beginning
of life? Total number is what?
What does biological diversity reflect?
All species are ____- which means extinction is what?
How can we explain this diversity? –
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
,BIO 243
- answ✔️✔️✔️1.7 million, 1/10 of the total number;
100 have gone extinct, so over 1 billion extant and or extinct species;
An interaction between the forms that preceded them and an ongoing process of
change;
Temporary, so it is as much as nature as origin of a species;
Evolution
Dictionary says!
What does oxford dictionary describe biology?
Darwin said what about evolution? Results from?
Now we say evolution is what?
What does LUCA stand for? –
- answ✔️✔️✔️The gradual process by which the present diversity of plant and animal
life arose from the earliest and most primitive organisms, which is believed to have
been continuing for at least the past 3 billion years.;
It is a descent with modification, and is resulted from changes in populations over
time;
Change in allele frequencies in a population over time;
Last universal common ancestor- we use this when referring to life originating from
one position/organism
Some misconceptions about evolution by natural selection
Misconception: evolution is a theory for the of origin of life; Truth:?
Misconception: Evolution gives species traits needed for survival; Truth?
Misconception: Evolution progresses species toward "perfection" by removing bad
genes; truth?
Misconception: Life evolves only by random chance; truth?
Misconception: Evolution doesn't affect humans; truth?
Misconception: Species are clear and easy to recognize; truth?
Misconception: Evolution is slow and gradual; truth? –
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
, BIO 243
- answ✔️✔️✔️Evolution is an explanation for how life has changed since the origin;
Selection can only operate on the available variations in a population;
"Bad" genes may be maintained by mutation, gene flow, late effect onset;
Variation from mutation is random, but selection favours beneficial traits;
Humans continue to adapt;
Simple view of species as groups that can interbreed doesn't
always apply; Usually slow, but can also occur in rapid bursts;
How do we study evolution?
Genetics: how does inheritance work?
Population and quantitative genetics: how do allele frequencies change in
populations over time and space? Looking at evolution in realtime...
Paleobiology: how do large scale evolutionary changes affect groups of organisms?
Integration of generics and morphology: developmental patterns and evolutionary
transitions - - answ✔️✔️✔️
Ideas that needed to be established in order for evolution to be possible (what ideas
around Darwin's Time were floating around?)
1. Some species _____ while others go _____ (existence of ______ bones from
species that _____ exist) (Cuvier)
2. The earth must be much _____ than believed, and undergoing _____
(landforms form _____ from ______ processes) (Lyell)
3. Species themselves must be capable of ______ (proposed _______, mechanism
of ______ of acquired traits (kinda garbage opinion lol))(Lamarck )
4. There must be a pressure to force _____, ex _______ for resources (human
populations grow ____ than available resources so _____ individuals survive or else
growth is _______) (Malthus) - - answ✔️✔️✔️Survive, extinct, fossilized, no longer;
Older, change, gradually, geological;
Changing, transmutation, inheritance;
Adaptation, competition, faster, fittest, exponential
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
BIO 243 Final Exam Review and
Practice Test Bank – Updated
2025 Questions with Fully Verified
Correct Solutions | High-Scoring
A+
Theme 3: what is evolution?
Most of life's history and diversity, is _____. –
- answ✔️✔️✔️Microbial;
Where does biological diversity come from?
How many species have been described?
For every species existing today, how many have gone extinct since the beginning
of life? Total number is what?
What does biological diversity reflect?
All species are ____- which means extinction is what?
How can we explain this diversity? –
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
,BIO 243
- answ✔️✔️✔️1.7 million, 1/10 of the total number;
100 have gone extinct, so over 1 billion extant and or extinct species;
An interaction between the forms that preceded them and an ongoing process of
change;
Temporary, so it is as much as nature as origin of a species;
Evolution
Dictionary says!
What does oxford dictionary describe biology?
Darwin said what about evolution? Results from?
Now we say evolution is what?
What does LUCA stand for? –
- answ✔️✔️✔️The gradual process by which the present diversity of plant and animal
life arose from the earliest and most primitive organisms, which is believed to have
been continuing for at least the past 3 billion years.;
It is a descent with modification, and is resulted from changes in populations over
time;
Change in allele frequencies in a population over time;
Last universal common ancestor- we use this when referring to life originating from
one position/organism
Some misconceptions about evolution by natural selection
Misconception: evolution is a theory for the of origin of life; Truth:?
Misconception: Evolution gives species traits needed for survival; Truth?
Misconception: Evolution progresses species toward "perfection" by removing bad
genes; truth?
Misconception: Life evolves only by random chance; truth?
Misconception: Evolution doesn't affect humans; truth?
Misconception: Species are clear and easy to recognize; truth?
Misconception: Evolution is slow and gradual; truth? –
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
, BIO 243
- answ✔️✔️✔️Evolution is an explanation for how life has changed since the origin;
Selection can only operate on the available variations in a population;
"Bad" genes may be maintained by mutation, gene flow, late effect onset;
Variation from mutation is random, but selection favours beneficial traits;
Humans continue to adapt;
Simple view of species as groups that can interbreed doesn't
always apply; Usually slow, but can also occur in rapid bursts;
How do we study evolution?
Genetics: how does inheritance work?
Population and quantitative genetics: how do allele frequencies change in
populations over time and space? Looking at evolution in realtime...
Paleobiology: how do large scale evolutionary changes affect groups of organisms?
Integration of generics and morphology: developmental patterns and evolutionary
transitions - - answ✔️✔️✔️
Ideas that needed to be established in order for evolution to be possible (what ideas
around Darwin's Time were floating around?)
1. Some species _____ while others go _____ (existence of ______ bones from
species that _____ exist) (Cuvier)
2. The earth must be much _____ than believed, and undergoing _____
(landforms form _____ from ______ processes) (Lyell)
3. Species themselves must be capable of ______ (proposed _______, mechanism
of ______ of acquired traits (kinda garbage opinion lol))(Lamarck )
4. There must be a pressure to force _____, ex _______ for resources (human
populations grow ____ than available resources so _____ individuals survive or else
growth is _______) (Malthus) - - answ✔️✔️✔️Survive, extinct, fossilized, no longer;
Older, change, gradually, geological;
Changing, transmutation, inheritance;
Adaptation, competition, faster, fittest, exponential
BIO 243 Final Exam Review and Practice Test Bank – Updated 2025 Questions with Fully Verified Correct Solutions
High-Scoring A+
