Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
,Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
Biology 2e Release Notes 2025
Publish Date:
July 2025
Revision Number:
3 4 5 6 7 8 9 10 RS 25 20 18
Page Count Difference:
The page count has increased slightly, up from 1441 to 1481, due to errata changes to the text.
Errata:
Below is a table containing submitted errata and the resolutions that OpenStax has provided for
this latest text.
Location Detail Resolution Error Type
Unit 1 Erratum #17015 wasn't quite Approved Other factual
finished. The "Concept in Action" inaccuracy in
The Cellular box links to a yeast fermentation content
Foundation of video but describes it as "anaerobic
Life: Chapter 4 cellular respiration in action." I'm not
familiar enough with your editorial
How Cells policy to say whether you should
Obtain Energy: use a different video or move the
Section 4.4 existing video to the Alcohol
Fermentation Fermentation section.
Unit 1 The periodic table in the Chapter 2 Approved Typo
ppt slides has nitrogen N being
The Chemistry called 'Carbon' and has carbon's
of Life avg molecular weight below it.
Unit 1 “The atom is the smallest and most Approved General/peda
fundamental unit of gogical
The Chemistry matter.” Defined _after_ first use on suggestion or
of Life: Chapter page 23. Also incorrect on the question
1 Oxford Dictionary of English’s
definition of matter: “…especially as
The Study of distinct from energy.”
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 “All adaptations enhance the Approved Other factual
reproductive potential of the inaccuracy in
The Chemistry individuals exhibiting them,” This content
of Life: Chapter sounds like a factual generalization,
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
,Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
1 but I think you just meant a
consequence of the definition, in
The Study of which case remove “all.” (If it’s
Life: Section meant as a statement of fact, it’s
1.2 Themes odd, because it is often false for
and Concepts non-technical senses of
of Biology “adaptations,” and could be false in
your sense: e.g. if an evolutionary
adaptation benefited past
generations but will not turn out to
“enhance the reproductive potential
of the individuals exhibiting them.”)
Unit 1 “gamete, oocyte,” Define each on Approved General/peda
first occurrence. gogical
The Chemistry suggestion or
of Life: Chapter question
1
The Study of
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 Current Alt Text: Approved Typo
The Chemistry There are four photos shown. The
of Life: Chapter first photo is a micrograph, showing
1 tubelike bacterial...
The Study of Suggestions:
Life: Section - Change the word "bacterial" to
1.2 Themes "bacteria" in the alt text.
and Concepts - Consider replacing the alt text
of Biology references to "first photo", "second
photo", etc. with "photo A", "photo
B", etc. since the photos are lettered
on the image and in the caption.
Unit 1 Current text: Approved General/peda
gogical
The Chemistry A phylogenetic tree ... The length of suggestion or
of Life: Chapter each branch is proportional to the question
1 time elapsed since the split.
The Study of Question:
Life: Section
1.2 Themes But is the length of a branch on a
and Concepts phylogenetic tree really always
of Biology proportional to the time elapsed? I
remember evolutionary trees where
it was not, but am not sure if they
were technically "phylogenetic
trees". The following link suggests
that the lengths are NOT always
proportional to time. "How to Read
an Evolutionary Tree: Unless
indicated otherwise, a phylogenetic
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
, Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
tree only depicts the branching
history of common ancestry. The
pattern of branching (i.e., the
topology) is what matters here.
Branch lengths are irrelevant--they
are simply drawn in whatever way
makes the tree look most tidy."
(https://www.nature.com/scitable/top
icpage/reading-a-phylogenetic-tree-
the-meaning-of-41956/)
Suggestion:
Consider removing the last
sentence or changing the wording to
indicate that it is only true some of
the time.
Note:
IF the main point is that the
phylogenetic tree shown in Figure
1.17 immediately below has lengths
proportional to time (I don't know if
they are), then perhaps move the
statement about length to the Figure
1.17 caption instead. Thank you.
Unit 1 "mitochondria produce energy to Approved Other factual
power the cell" is factually incorrect. inaccuracy in
The Chemistry According to the 1st Law of content
of Life: Chapter Thermodynamics, energy is neither
1 created (produced) or destroyed. I
recommend revising this phrase to
The Study of read "mitochondria process energy
Life: Section to power the cell".
1.2 Themes
and Concepts
of Biology
Unit 1 For cell you use an image of a Approved Other factual
mature human RBC. But RBC are inaccuracy in
The Chemistry not really cells, since they lack a content
of Life: Chapter nucleus in humans. They do have
1 one during development in the bone
marrow, but eject the nucleus before
The Study of entering the blood stream.
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 The question currently states: Approved Other factual
"Each carbon molecule can bond inaccuracy in
The Chemistry with as many as________ other content
of Life: Chapter atom(s) or molecule(s)."
2
Should this question say carbon
The Chemical atom instead of carbon molecule?
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
,Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
Biology 2e Release Notes 2025
Publish Date:
July 2025
Revision Number:
3 4 5 6 7 8 9 10 RS 25 20 18
Page Count Difference:
The page count has increased slightly, up from 1441 to 1481, due to errata changes to the text.
Errata:
Below is a table containing submitted errata and the resolutions that OpenStax has provided for
this latest text.
Location Detail Resolution Error Type
Unit 1 Erratum #17015 wasn't quite Approved Other factual
finished. The "Concept in Action" inaccuracy in
The Cellular box links to a yeast fermentation content
Foundation of video but describes it as "anaerobic
Life: Chapter 4 cellular respiration in action." I'm not
familiar enough with your editorial
How Cells policy to say whether you should
Obtain Energy: use a different video or move the
Section 4.4 existing video to the Alcohol
Fermentation Fermentation section.
Unit 1 The periodic table in the Chapter 2 Approved Typo
ppt slides has nitrogen N being
The Chemistry called 'Carbon' and has carbon's
of Life avg molecular weight below it.
Unit 1 “The atom is the smallest and most Approved General/peda
fundamental unit of gogical
The Chemistry matter.” Defined _after_ first use on suggestion or
of Life: Chapter page 23. Also incorrect on the question
1 Oxford Dictionary of English’s
definition of matter: “…especially as
The Study of distinct from energy.”
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 “All adaptations enhance the Approved Other factual
reproductive potential of the inaccuracy in
The Chemistry individuals exhibiting them,” This content
of Life: Chapter sounds like a factual generalization,
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
,Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
1 but I think you just meant a
consequence of the definition, in
The Study of which case remove “all.” (If it’s
Life: Section meant as a statement of fact, it’s
1.2 Themes odd, because it is often false for
and Concepts non-technical senses of
of Biology “adaptations,” and could be false in
your sense: e.g. if an evolutionary
adaptation benefited past
generations but will not turn out to
“enhance the reproductive potential
of the individuals exhibiting them.”)
Unit 1 “gamete, oocyte,” Define each on Approved General/peda
first occurrence. gogical
The Chemistry suggestion or
of Life: Chapter question
1
The Study of
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 Current Alt Text: Approved Typo
The Chemistry There are four photos shown. The
of Life: Chapter first photo is a micrograph, showing
1 tubelike bacterial...
The Study of Suggestions:
Life: Section - Change the word "bacterial" to
1.2 Themes "bacteria" in the alt text.
and Concepts - Consider replacing the alt text
of Biology references to "first photo", "second
photo", etc. with "photo A", "photo
B", etc. since the photos are lettered
on the image and in the caption.
Unit 1 Current text: Approved General/peda
gogical
The Chemistry A phylogenetic tree ... The length of suggestion or
of Life: Chapter each branch is proportional to the question
1 time elapsed since the split.
The Study of Question:
Life: Section
1.2 Themes But is the length of a branch on a
and Concepts phylogenetic tree really always
of Biology proportional to the time elapsed? I
remember evolutionary trees where
it was not, but am not sure if they
were technically "phylogenetic
trees". The following link suggests
that the lengths are NOT always
proportional to time. "How to Read
an Evolutionary Tree: Unless
indicated otherwise, a phylogenetic
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
, Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
tree only depicts the branching
history of common ancestry. The
pattern of branching (i.e., the
topology) is what matters here.
Branch lengths are irrelevant--they
are simply drawn in whatever way
makes the tree look most tidy."
(https://www.nature.com/scitable/top
icpage/reading-a-phylogenetic-tree-
the-meaning-of-41956/)
Suggestion:
Consider removing the last
sentence or changing the wording to
indicate that it is only true some of
the time.
Note:
IF the main point is that the
phylogenetic tree shown in Figure
1.17 immediately below has lengths
proportional to time (I don't know if
they are), then perhaps move the
statement about length to the Figure
1.17 caption instead. Thank you.
Unit 1 "mitochondria produce energy to Approved Other factual
power the cell" is factually incorrect. inaccuracy in
The Chemistry According to the 1st Law of content
of Life: Chapter Thermodynamics, energy is neither
1 created (produced) or destroyed. I
recommend revising this phrase to
The Study of read "mitochondria process energy
Life: Section to power the cell".
1.2 Themes
and Concepts
of Biology
Unit 1 For cell you use an image of a Approved Other factual
mature human RBC. But RBC are inaccuracy in
The Chemistry not really cells, since they lack a content
of Life: Chapter nucleus in humans. They do have
1 one during development in the bone
marrow, but eject the nucleus before
The Study of entering the blood stream.
Life: Section
1.2 Themes
and Concepts
of Biology
Unit 1 The question currently states: Approved Other factual
"Each carbon molecule can bond inaccuracy in
The Chemistry with as many as________ other content
of Life: Chapter atom(s) or molecule(s)."
2
Should this question say carbon
The Chemical atom instead of carbon molecule?
Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf Biology_2e_-_Release_Notes_2025.pdf
