Attribution CC BY. All concepts typically covered in an introductory biology course are thoroughly and concisely covered. Comprehensiveness rating: 5 see less. The accuracy of this textbook is unimpeachable.
The textbook does a great job of accurately explaining the science of life for a nonmajors course. Concepts of biology will be up to date for many years to come and students who thoroughly study the book will have a well rounded introduction to the science of life as it pertains to current issues facing our society.
The book clearly explains each concept. It assumes the reader knows little about biology, introduces them to the concepts with a minimum of unnecessary jargon, and is well supported with visual aids. From chapter to chapter there is a similar degree of depth and breadth.
Each chapter is organized in well labeled sections, and each chapter ends with a summary of key concepts as well as review questions. Each chapter is divided into sections so an instructor could easily assign only some of the sections for a given chapter. For example, chapter 4 is divided into 5 different sections, each of which has a numerical heading as well as a title. Ex: 4. The textbook follows the order of a typical introductory biology textbook.
Substituting this book for another requires little adjustment. The book includes hyperlinks to videos, and all of them worked at the time I wrote this review. Concepts of biology makes meaningful cultural connections when pertinent and is suitable for a diverse student body.
Concepts of biology is a great textbook for a nonmajors biology course and instructors should adopt this course as opposed to more expensive options that offer little if any additional value.
There wasn't really an area of my introductory biology course that wasn't covered in this text. Very thorough. I think that much of the content of this text will not change, but it would be easy to update sections as needed.
I think that it is very helpful to have the key terms not only listed but defined. The search feature is really helpful for quickly looking up terms as well. This text is well written for its audience and is not overly wordy, which students appreciate.
Each unit follows the same framework for each unit which is helpful for students to be able to easily navigate the text. Terminology seems to be consistent throughout, often initially defining a term and then broadening that definition as necessary.
There are some sections with larger chunks of texts that could be broken up to create more white space but overall I think it would be easy to assign various chunks of material for reading.
I really liked this text and would definitely consider its adoption for my course. The embedded links and animations are helpful. I'd love to see a link to an interactive periodic table added. The Career Connections sections are great as students are often unsure what they want to do within the field and these give some good ideas. One thing that I was disappointed about was that there were no answers anywhere for any of the questions.
The Visual Connections questions, in particular, should be answered somewhere so that students can check for comprehension. Overall, well done! This textbook surveys the essential topics of biology in the appropriate amount of detail for non-biology major undergraduates.Want to cite, share, or modify this book?
This book is Creative Commons Attribution License 4. Skip to Content. Concepts of Biology Index. Table of contents. My highlights. The Cellular Foundation of Life.
Cell Division and Genetics. Molecular Biology and Biotechnology. Evolution and the Diversity of Life. Animal Structure and Function.
Concepts of Biology
A absorption spectrum 5. Acid rain Acids 2. Actinopterygii Active transport 3. Adaptive immunity Age structure Allopatric speciation Amino acids 2. Amoebocytes Amoebozoa Amphibia Annelida The latter half of the twentieth century began with the discovery of the structure of DNA, then progressed to the development of the basic tools used to study and manipulate DNA. These advances, as well as advances in our understanding of and ability to manipulate cells, have led some to refer to the twenty-first century as the biotechnology century.
The rate of discovery and of the development of new applications in medicine, agriculture, and energy is expected to accelerate, bringing huge benefits to humankind and perhaps also significant risks. Many of these developments are expected to raise significant ethical and social questions that human societies have not yet had to consider. Want to cite, share, or modify this book?
This book is Creative Commons Attribution License 4. Skip to Content. Concepts of Biology Introduction. Table of contents. My highlights. The Cellular Foundation of Life. Cell Division and Genetics. Molecular Biology and Biotechnology. Evolution and the Diversity of Life.
Animal Structure and Function. Figure The polymerase enzyme most often used with PCR comes from a strain of bacteria that lives in b the hot springs of Yellowstone National Park. Chapter Outline Previous Next. Order a print copy. We recommend using a citation tool such as this one.Biology is the science that studies life. What exactly is life? This may sound like a silly question with an obvious answer, but it is not easy to define life. For example, a branch of biology called virology studies viruses, which exhibit some of the characteristics of living entities but lack others.
It turns out that although viruses can attack living organisms, cause diseases, and even reproduce, they do not meet the criteria that biologists use to define life. How do those various living things function?Chapter Five OpenStax Concepts of Biology
When faced with the remarkable diversity of life, how do we organize the different kinds of organisms so that we can better understand them? And, finally—what biologists ultimately seek to understand—how did this diversity arise and how is it continuing? As new organisms are discovered every day, biologists continue to seek answers to these and other questions.
When viewed together, these eight characteristics serve to define life. Organisms are highly organized structures that consist of one or more cells. Even very simple, single-celled organisms are remarkably complex. Inside each cell, atoms make up molecules. These in turn make up cell components or organelles. Multicellular organisms, which may consist of millions of individual cells, have an advantage over single-celled organisms in that their cells can be specialized to perform specific functions, and even sacrificed in certain situations for the good of the organism as a whole.
How these specialized cells come together to form organs such as the heart, lung, or skin in organisms like the toad shown in Figure 1. Organisms respond to diverse stimuli.
For example, plants can bend toward a source of light or respond to touch Figure 1. Even tiny bacteria can move toward or away from chemicals a process called chemotaxis or light phototaxis. Movement toward a stimulus is considered a positive response, while movement away from a stimulus is considered a negative response. Watch this video to see how the sensitive plant responds to a touch stimulus.
Single-celled organisms reproduce by first duplicating their DNA, which is the genetic material, and then dividing it equally as the cell prepares to divide to form two new cells. Many multicellular organisms those made up of more than one cell produce specialized reproductive cells that will form new individuals.
These genes are the reason that the offspring will belong to the same species and will have characteristics similar to the parent, such as fur color and blood type.
Biologists refer to this fit as adaptation and it is a consequence of evolution by natural selection, which operates in every lineage of reproducing organisms. Examples of adaptations are diverse and unique, from heat-resistant Archaea that live in boiling hot springs to the tongue length of a nectar-feeding moth that matches the size of the flower from which it feeds.
All adaptations enhance the reproductive potential of the individual exhibiting them, including their ability to survive to reproduce. Adaptations are not constant. As an environment changes, natural selection causes the characteristics of the individuals in a population to track those changes.The individual sexually reproducing organism—including humans—begins life as a fertilized egg, or zygote.
Trillions of cell divisions subsequently occur in a controlled manner to produce a complex, multicellular human. In other words, that original single cell was the ancestor of every other cell in the body. Once a human individual is fully grown, cell reproduction is still necessary to repair or regenerate tissues.
For example, new blood and skin cells are constantly being produced. All multicellular organisms use cell division for growth, and in most cases, the maintenance and repair of cells and tissues. Single-celled organisms use cell division as their method of reproduction. Want to cite, share, or modify this book? This book is Creative Commons Attribution License 4. Skip to Content. Concepts of Biology Introduction. Table of contents. My highlights. The Cellular Foundation of Life.
Cell Division and Genetics. Molecular Biology and Biotechnology. Evolution and the Diversity of Life. Animal Structure and Function. Figure 6. After four rounds of cell division, b there are 16 cells, as seen in this SEM image. After many rounds of cell division, the individual develops into a complex, multicellular organism, as seen in this c mature sea urchin. Chapter Outline 6. Previous Next. Order a print copy. We recommend using a citation tool such as this one.The travel documents were excellent, with good maps and very helpful stickers and highlights.
We chose Nordic Visitor because they are local travel specialists, and they even replied to our emails on Easter holiday. We chose Nordic Visitor because of the excellent range of activities offered. The itinerary was really well thought out and planned, and the tour allowed us to experience the best Norway has to offer. It was a very nice trip with Nordic Visitor, and a wonderful experience. I was very happy with your services, I was picked up at the airport, and we drove to Kiruna, and went through the program of my tour.
We thoroughly enjoyed every aspect of the trip. It was easy and stress free and we had a wonderful time. Thank you for everything - it was well organised. The mobile phone was great. Thank you - it was a fantastic holiday!!.
The trip was great. We took more than 2500 pics, we drove more than 3300 Km. We met many friends on the way - most of them "Nordic people". The service provided and information received before the tour was excellent. The standard of accommodation was excellent, for me the best experience was sleeping in the national park, however every single hotel was wonderful.
We had the best guide-driver we could dream of. For us he was more than a guide. I have a deep respect and admiration for Asgeir who helped us to discover, understand and fall in love with this beautiful country.
He adapted himself so kindly to our needs and tantrums. My daughter keeps talking about him. I do not exaggerate when I say he is her hero. Now everyone knows him in France and in England. I was not expecting such high quality standard of meals. My favorite was a meal at the last restaurant where every single dish was a delight (Hotel Ranga).
It was definitively the best restaurant along with the sea food bar in Reykjavik. Ask Thora for the name. It was also very nice to meet her in Reykjavik. The weather has been with us as well. Every landscape and natural feature have been a festival of emotions for us. Icelandic people are welcoming, and friendly.This predicate is specified as a (possibly nested) JSON list whose first element is an operator and the rest of the elements its arguments.
Here's an example of a filter specification to choose only those rows whose field "000002" is less than 3. Note how you're not limited to two arguments. It's also worth noting that for a filter like that one to be accepted, all three fields must have the same optype (e.
The field operator also accepts as arguments the field's name (as a string) or the row column (as an integer). If you have duplicated field names, the best thing to do is to use either column numbers or field identifiers in your filters, to avoid ambiguities. Besides a field's value, one can also ask whether it's missing or not. These are all the accepted operators: To be accepted by the API, the filter must evaluate to a boolean value and contain at least one operator.
So, for instance, a constant or an expression evaluating to a number will be rejected. Once a dataset has been successfully created it will have the following properties. This is the date and time in which the dataset was created with microsecond precision. It can contain restricted markdown to decorate the text. It has an entry per each field type (categorical, datetime, numeric, and text), an entry for preferred fields and an entry for the total number of fields.
That is the total number of fields including those created under the hood to support text fields. Each entry includes the column number, the name of the field, the type of the field, and the summary. In a future version, you will be able to share datasets with other co-workers or, if desired, make them publicly available. This is the date and time in which the dataset was updated with microsecond precision.
Dataset Fields The property fields is a dictionary keyed by each field's id in the source. Each field's id has as a value an object with the following properties: Numeric summaries come with all the fields described below. If the number of unique values in the data is greater than 32, then 'bins' will be used for the summary.
If not, 'counts' will be available. Categorical summaries give you a count per each category and missing count in case any of the instances contain missing values. Text summaries give statistics about the vocabulary of a text field, and the number of instances containing missing values. Before a dataset is successfully created, BigML.
The dataset goes through a number of states until all these analyses are completed. Through the status field in the dataset you can determine when the dataset has been fully processed and ready to be used to create a model.
It includes the total row-format errors and a sampling of the ill-formatted rows. Thus when retrieving a dataset, it's possible to specify that only a subset of fields be retrieved, by using any combination of the following parameters in the query string (unrecognized parameters are ignored): Fields Filter Parameters Parameter TypeDescription fields optional Comma-separated list A comma-separated list of field IDs to retrieve. To update a dataset, you need to PUT an object containing the fields that you want to update to the dataset' s base URL.
Once you delete a dataset, it is permanently deleted.
If you try to delete a dataset a second time, or a dataset that does not exist, you will receive a "404 not found" response. However, if you try to delete a dataset that is being used at the moment, then BigML. To list all the datasets, you can use the dataset base URL.