The fascinating, untold story of the air we breathe, the hidden life it contains, and invisible dangers that can turn the world upside down

Every day we draw in two thousand gallons of air—and thousands of living things. From the ground to the stratosphere, the air teems with invisible life. This last great biological frontier remains so mysterious that it took over two years for scientists to finally agree that the Covid pandemic was caused by an airborne virus.

In Air-Borne, award-winning New York Times columnist and author Carl Zimmer leads us on an odyssey through the living atmosphere and through the history of its discovery. We travel to the tops of mountain glaciers, where Louis Pasteur caught germs from the air, and follow Amelia Earhart and Charles Lindbergh above the clouds, where they conducted groundbreaking experiments. We meet the long-forgotten pioneers of aerobiology including William and Mildred Wells, who tried for decades to warn the world about airborne infections, only to die in obscurity.

Air-Borne chronicles the dark side of aerobiology with gripping accounts of how the United States and the Soviet Union clandestinely built arsenals of airborne biological weapons designed to spread anthrax, smallpox, and an array of other pathogens. Air-Borne also leaves readers looking at the world with new eyes—as a place where the oceans and forests loft trillions of cells into the air, where microbes eat clouds, and where life soars thousands of miles on the wind.

Weaving together gripping history with the latest reporting on Covid and other threats to global health, Air-Borne surprises us on every page as it reveals the hidden world of the air.

Our revision resources are the smart choice for those revising for AQA AS/A Level Biology. This book will help you to: Consolidate your revision with topic- and exam-based formats Check your understanding with worked examples Build your confidence with Grade boosters and guided questions Avoid common misconceptions and pitfalls with helpful tips throughout Develop your exam technique with exam-style questions and answers. (Full worked solutions available online.)

There are many modes of communication that neurons use to transmit information besides what has come to be called neurotransmission. Many of these other types of communication can be classified as neuromodulatory, where instead of conveying excitation or inhibition, the signal from one neuron changes the properties of other neurons or synapses. This form of neuronal communication is often overlooked by systems physiologists, but it is extremely prevalent in the nervous system and needs to be included in any description of how the nervous system processes information. This book provides the foundations for understanding the cellular and molecular basis for neuromodulatory effects. It illustrates some key examples of the roles played by neuromodulation in sensory processing, neuromuscular transmission, generation of motor behaviours, and learning. Finally, the book seeks to point out areas that are likely to be of importance in the future study of information processing by the nervous system. For neurobiology students and researchers, the book summarizes a vast amount of research, and puts it into the context of how these cellular mechanisms are used in systems of neurons. By spanning the levels of analysis from sub-cellular mechanisms through cellular properties and neuronal systems to behaviour, the book provides a framework for understanding this currently exploding field of research. It is accessible to anyone with a basic understanding of neurobiology, but is in depth enough to satisfy readers who are very familiar with the field.

Developed for the new International A Level specification, these new resources are specifically designed for international students, with a strong focus on progression, recognition and transferable skills, allowing learning in a local context to a global standard.

Features:

• Recognised by universities worldwide and fully comparable to UK reformed GCE A levels.
• Supports a modular approach, in line with the specification.
• Appropriate international content puts learning in a real-world context, to a global standard, making it engaging and relevant for all learners.
• Reviewed by a language specialist to ensure materials are written in a clear and accessible style.
• The embedded transferable skills, needed for progression to higher education and employment, are signposted so students understand what skills they are developing and therefore go on to use these skills more effectively in the future.
• Exam practice provides opportunities to assess understanding and progress, so students can make the best progress they can.

A Best Book of 2020: The Washington Post * NPR * Chicago Tribune * Smithsonian A "remarkable" (Los Angeles Times), "seductive" (The Wall Street Journal) debut from the new cohost of Radiolab, Why Fish Don't Exist is a dark and astonishing tale of love, chaos, scientific obsession, and--possibly--even murder. "At one point, Miller dives into the ocean into a school of fish...comes up for air, and realizes she's in love. That's how I felt: Her book took me to strange depths I never imagined, and I was smitten." --The New York Times Book Review David Starr Jordan was a taxonomist, a man possessed with bringing order to the natural world. In time, he would be credited with discovering nearly a fifth of the fish known to humans in his day. But the more of the hidden blueprint of life he uncovered, the harder the universe seemed to try to thwart him. His specimen collections were demolished by lightning, by fire, and eventually by the 1906 San Francisco earthquake--which sent more than a thousand discoveries, housed in fragile glass jars, plummeting to the floor. In an instant, his life's work was shattered. Many might have given up, given in to despair. But Jordan? He surveyed the wreckage at his feet, found the first fish that he recognized, and confidently began to rebuild his collection. And this time, he introduced one clever innovation that he believed would at last protect his work against the chaos of the world. When NPR reporter Lulu Miller first heard this anecdote in passing, she took Jordan for a fool--a cautionary tale in hubris, or denial. But as her own life slowly unraveled, she began to wonder about him. Perhaps instead he was a model for how to go on when all seemed lost. What she would unearth about his life would transform her understanding of history, morality, and the world beneath her feet. Part biography, part memoir, part scientific adventure, Why Fish Don't Exist is a wondrous fable about how to persevere in a world where chaos will always prevail.

Sunday Times Bestseller 'A paradigm-smashing chronicle of joyous entanglement' Charles Foster Waterstones Non-Fiction Book of the Month (September) Are trees social beings? How do trees live? Do they feel pain or have awareness of their surroundings? In The Hidden Life of Trees Peter Wohlleben makes the case that the forest is a social network. He draws on groundbreaking scientific discoveries to describe how trees are like human families: tree parents live together with their children, communicate with them, support them as they grow, share nutrients with those who are sick or struggling, and even warn each other of impending dangers. Wohlleben also shares his deep love of woods and forests, explaining the amazing processes of life, death and regeneration he has observed in his woodland. A walk in the woods will never be the same again.

Plants are living things. They go through a life cycle. Learn about what plants need to live and grow. This science reader introduces students to the life cycle. With easy-to-read text, this book teaches students important scientific concepts and vocabulary terms including seed, root, stem, leaf, and flower. Aligned to state and national standards, the book contains nonfiction text features like an index, a glossary, captions, bold font, and detailed images to keep students connected to the text. A hands-on science experiment helps students apply what they have learned and develops critical thinking skills.

This timely and up to date new edition of Biomedicine and Beatitude features an entirely new chapter on the ethics of bodily modification. It is also updated throughout to reflect the pontificate of Pope Francis, recent concerns including ethical issues raised by the COVID-19 pandemic, and feedback from the many instructors who used the first edition in the classroom

Exam Board: OCR Level: A level Subject: Science / Biology First teaching: September 2015 First exams: June 2017 An ActiveBook is included with every Student Book, giving your students easy online access to the content in the Student Book. They can make it their own with notes, highlights and links to their wider reading. Perfect for supporting work and revision activities. Student Book 1 supports a standalone AS course and provides the first year of a two-year A level course; Student Books 1 and 2 together support the full A level course. A cumulative approach to learning constantly builds on what has previously been taught. The chapter openers highlight prior learning requirements and link to future learning. The required maths skills are highlighted at the start of each chapter providing opportunities for students to check understanding and remedy gaps. Bigger spreads require students to read real-life material that's relevant to the course and use knowledge in new contexts. Accompanying questions require students to analyse how scientists write, think critically and consider issues. Preparing for your exams sections highlight the key differences between preparing for an AS and full A level exam. Practice question spreads provide opportunities for students to regularly check their understanding using questions written in the style of the new exams from day one.

Developed for the new International A Level specification, these new resources are specifically designed for international students, with a strong focus on progression, recognition and transferable skills, allowing learning in a local context to a global standard. Recognised by universities worldwide and fully comparable to UK reformed GCE A levels. Supports a modular approach, in line with the specification. Appropriate international content puts learning in a real-world context, to a global standard, making it engaging and relevant for all learners. Reviewed by a language specialist to ensure materials are written in a clear and accessible style. The embedded transferable skills, needed for progression to higher education and employment, are signposted so students understand what skills they are developing and therefore go on to use these skills more effectively in the future. Exam practice provides opportunities to assess understanding and progress, so students can make the best progress they can.

In this book Adrian Koopman details the complex relationship between plants, the Zulu language and Zulu culture. Zulu plant names do not just identify plants, they tell us a lot more about the plant, or how it is perceived or used in Zulu culture. For example, the plant name umhlulambazo (what defeats the axe’ tells us that this is a tree with hard, dense wood, and that usondelangange (come closer so I can embrace you) is a tree with large thorns that snag the passer-by. In a similar vein, both umakuphole (let it cool down) and icishamlilo (put out the fire) refer to plants that are used medicinally to treat fevers and inflammations. Plants used as the base of love-charms have names that are particularly colourful, such as unginakile (she has noticed me), uvelabahleke (appear and they smile) and the wonderfully named ungcingci-wafika-umntakwethu (how happy I am that you have arrived, my sweetheart!). And then there are those plant names that are just plain intriguing, if not mystifying: umakhandakansele (the heads of Mr Ratel), isandlasonwabu (hand of a chameleon), intombikayibhinci (the girl does not wear clothes) and ukhuningomile (piece of firewood, I am thirsty).