Introduction to Biology - Video Tutorials & Practice Problems
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intro
Introduction to Biology Channel
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1m
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Video transcript
Hi, everyone. Welcome to Biology Channel and Pearson Plus. My name is Jason, and I'm an experienced biologist and science educator. And my job is to help you learn and understand the content in this course to prepare you for your exams, while also having some fun along the way. I have a master's degree in applied molecular biology and diverse career experiences including genetics research at Johns Hopkins University and many years of teaching as both a college professor and a professional tutor. In this biology video based course, we'll explore some of the most commonly taught topics, including biomolecules, cell structure and function, cellular respiration, photosynthesis, cell division, genetics, gene expression, and much much more. We've strategically developed this course with you in mind to maximize your learning. Our video content is highly engaging and can be adapted to your class textbook. We have dozens of effective memory tools and mnemonics to help you remember critical info on your test. Also, every video has a downloadable lesson worksheet for you to print off, allowing you to follow along as you watch. There's simply no better way for you to learn and prepare for your exams. If you have any questions along the way, post them in the comments section of any video and our team will get right back to you. So again, welcome to biology channel and Pearson plus. We're super excited to have you here. So once you're all ready, let's get started.
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concept
Introduction to Biology
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3m
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Video transcript
Hi there. Welcome to our biology course. My name is Jason, and I'll be your instructor. If you have any questions about the content in our videos, feel free to post them in the comments section of each video, and we'll get back to you as soon as we can. Now that being said, let's go on and get started with our introduction to biology. And so, of course, we need to first define the term biology. And so biology can be defined as the scientific study of life, and we can tell simply by looking at the roots within the word biology. And so the prefix bio means life and the suffix -ology means the study of. And so if we take these two roots bio and ology, we can create the word biology and get a word that means the scientific study of life. And so notice down below in our image we have a reminder of this fact, and again the prefix bio means life and the suffix -ology means the study of. Now, we all know that life is incredibly diverse. We can tell simply by walking outside or going to a zoo. And we know that there's all kinds of ocean life and many different types of plants and animals. However, what you may not know is that most life on earth is actually way too small for our eyes to see. In fact, the smallest and the most basic fundamental unit of life is the cell. And moving forward in our course we're going to talk a lot more about the structure and function of Cells. Now, another term that you should be familiar with is the term organism. Now, organism is a very broad term that refers to any individual form of life And because it refers to any form of life, it can be applied to all forms of life. So this means that the term organism applies to single cell bacteria as well as you and me. And so, if we take a look at our image down below over here, you'll notice the diversity of life. From all of the different types of ocean life to fungi and polar bears, tigers, bacterial cells, plants, and insects. And so moving forward in our course we'll be able to talk about some characteristics that apply to all types of life. But for now, this here concludes our brief introduction to Biology and I'll see you all in our next video.
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Problem
Problem
The area of science that studies life and its processes is called:
A
Archeology
B
Astronomy
C
Geology
D
Biology
E
Anthropology
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concept
Unicellular vs. Multicellular
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2m
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In this video we're going to differentiate between unicellular and multicellular organisms. Now we know from our last lesson video that the term organism refers to any individual form of life. Now these living organisms they can either be unicellular or multi cellular. Now unicellular organisms are forms of life that consist of just a single cell. And so we can see that because the root uni is a root that means 1, And so, unicellular organisms consist of just one single cell. Now, these unicellular organisms are usually so small that they can only be seen with microscopes. And so if we take a look at our image over here on the left hand side, notice that you will find a microscope that is being used to visualize a unicellular organism or an organism that consists of just 1 single cell. Now multi cellular organisms on the other hand are forms of life that consist of multiple cells. And again we can see this because the root multi is a root that means multiple or many. And so if we take a look at our image down below on the right hand side, notice it's showing you a diagram of a human being. And humans are multicellular organisms because we consist of trillions of cells. And so notice that it's showing you some of the different types of cells that can be found within humans and so this makes humans multicellular. And so this here concludes our brief lesson on unicellular and multicellular organisms and we'll be able to get some practice applying these concepts as we move forward. So, I'll see you all in our next video.