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Biology Homework Help

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Biology , the study of life, can be fascinating and wondrous. However, certain biology topics can sometimes seem incomprehensible. The best way to get a clear understanding of difficult biology concepts is to study them at home, as well as at school. Students should use quality biology homework help resources when studying. Below are some good resources and information to help you answer some of your biology homework questions.

Key Takeaways

• Biology homework and assignments can be difficult to understand. Always make sure to avail yourself of all available resources so that you can succeed.
• Your instructor, fellow students, and tutors can be invaluable to help make sure that you get clarification on concepts that you don't understand.
• Understanding key biological concepts like cell processes, DNA, and genetics are helpful in understanding some of the foundations of biology.
• Use sample biology quizzes and online resources to test your grasp of biology concepts.

Biology Homework Help Resources

Anatomy of the Heart Learn about this amazing organ that supplies blood to the entire body.

Animal Tissues Information on the structure and function of animal tissue types.

Bio-Word Dissections Learn how to "dissect" difficult biology words  so that they are easy to understand.

Brain Basics The brain is one of the largest and most important organs of the human body. Weighing in at about three pounds, this organ has a wide range of responsibilities.

Characteristics of Life What are the basic characteristics of life?

How To Study for Biology Exams

Biology exams can seem intimidating and overwhelming. The key to overcoming these obstacles is preparation. Learn how to do well on your biology test.

Organ Systems The human body is made up of several  organ systems  that work together as one unit. Learn about these systems and how they work together.

The Magic of Photosynthesis Photosynthesis is a process in which light energy is used to produce sugar and other organic compounds.

Eukaryotic and Prokaryotic Cells Take a journey into the cell to find out about the cell structure and classification of both prokaryotic cells and eukaryotic cells.

Cellular Respiration Cellular respiration is the process by which cells harvest the energy stored in food.

Differences Between Plant and Animal Cells Plant and animal cells are similar in that both are eukaryotic cells. However, there are several important differences between these two cell types.

Prokaryotic Cells Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. Prokaryotes include bacteria and archaeans.

10 Different Types of Cells in the Human Body

The body contains trillions of cells that come in varying shapes and sizes. Explore some of the different types of cells in the body.

7 Differences Between Mitosis and Meiosis Cells divide either through the process of mitosis or meiosis. Sex cells are produced through meiosis, while all other body cell types are produced through mitosis.

DNA Processes

Steps of DNA Replication DNA replication is the process of copying the DNA within our cells. This process involves RNA and several enzymes, including DNA polymerase and primase.

How Does DNA Transcription Work? DNA transcription is a process that involves the transcribing of genetic information from DNA to RNA. Genes are transcribed in order to produce proteins.

Translation and Protein Synthesis Protein synthesis is accomplished through a process called translation. In translation, RNA and ribosomes work together to produce proteins.

Genetics Guide Genetics is the study of inheritance or heredity. This guide helps you to understand basic genetics principles.

Why We Look Like Our Parents Have you ever wondered why you have the same eye color as your parent? Traits are inherited by the transmission of genes from parents to their young.

What Is Polygenic Inheritance? Polygenic inheritance is the inheritance of traits such as skin color, eye color and hair color, that are determined by more than one gene.

How Gene Mutation Occurs A gene mutation is any change that occurs in the DNA . These changes can be beneficial to, have some effect on, or be seriously detrimental to an organism.

What Traits Are Determined by Your Sex Chromosomes? Sex-linked traits originate from genes found on sex chromosomes. Hemophilia is an example of a common sex-linked disorder that is an X-linked recessive trait.

Cellular Respiration Quiz Cellular respiration allows cells to harvest the energy in the foods we eat. Test your knowledge of cellular respiration by taking this quiz!

Genetics and Heredity Quiz Do you know the difference between codominance and incomplete dominance? Test your knowledge of genetics by taking the Genetics and Heredity Quiz!

How Much Do You Know About Mitosis? In mitosis, the nucleus from a cell is divided equally between two cells. Test your knowledge of mitosis and cell division by taking the Mitosis Quiz!

Getting Additional Help

The above information provides a basic foundation for various biology topics. If you find that you still have problems understanding the material, don't be afraid to request assistance from an instructor or tutor. They can help clarify concepts so that you can gain a deeper understanding of biological concepts.

• Genetics Basics
• 10 Great Biology Activities and Lessons
• Genes and Genetic Inheritance
• Cell Theory: A Core Principle of Biology
• An Introduction to DNA Transcription
• Cell Biology Glossary
• How Chromosome Mutations Occur
• Chromosome Structure and Function
• DNA Definition: Shape, Replication, and Mutation
• 10 Facts About Cells
• Differences Between Plant and Animal Cells
• How To Make a DNA Model Using Candy
• Free or Low Cost Apps for Biology Teachers
• Science Class Question-and-Answer Topics
• Meiosis Study Guide
• What Is Cell Biology?

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Biology library

Welcome to the biology library, unit 1: intro to biology, unit 2: chemistry of life, unit 3: water, acids, and bases, unit 4: properties of carbon, unit 5: macromolecules, unit 6: elements of life, unit 7: energy and enzymes, unit 8: structure of a cell, unit 9: more about cells, unit 10: membranes and transport, unit 11: more about membranes, unit 12: cellular respiration, unit 13: photosynthesis, unit 14: cell signaling, unit 15: cell division, unit 16: classical and molecular genetics, unit 17: dna as the genetic material, unit 18: central dogma (dna to rna to protein), unit 19: gene regulation, unit 20: biotechnology, unit 21: more molecular biology, unit 22: developmental biology, unit 23: bacteria and archaea, unit 24: viruses, unit 25: evolution and the tree of life, unit 26: more about evolution and natural selection, unit 27: history of life on earth, unit 28: ecology, unit 29: more about ecology, unit 30: biodiversity and conservation, unit 31: behavioral biology, unit 32: principles of physiology, unit 33: human biology, unit 34: plant biology, unit 35: ap free response worked examples, unit 36: crash course: biology and ecology, unit 37: meet the biology professional.

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Firstly: If you use a screen reader, you likely already know Quizlet has never been accessible on any platform whatsoever. But if you don't know, don't use the app. Use the web browser version if you have to and can, but if you somewhat use vision, you can use the app for class. The interface is awful on both, with or without a screen reader, but slightly less awful on browser if you use a screen reader. I'd go into detail, but if you use one you can find out without wasting my time. –– OTHER THAN THAT, if you have iPad, use that instead of the iPhone. Text size is a pretty wacky thing on Quizlet, so if you have medium-long words/phrases in your study set, you'll want a bugger screen because bigger text doesn't work out on the app or the web version. And now, unrelated to most of you reading: Since Quizlet's younger days. It became another feature downgraded cash grab. If it's worth it to you, no judgement there, but it won't stop me from criticizing an app that has you pay for a randomized study quiz and a badge by your name, compared to many other apps with similar subscription rates and more variety of useful features. This one is just one of few known studying apps, which is why it's worth it to people, whether they are happy about it or not. The app (Quizlet in general) is just limited in features, especially compared to what it used to be. But hey, maybe that's just because I'm blind and all this app ever says to me is "Button."

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Chapter Summary

20.1 organizing life on earth.

Scientists continually gain new information that helps understand the evolutionary history of life on Earth. Each group of organisms went through its own evolutionary journey, or its phylogeny. Each organism shares relatedness with others, and based on morphologic and genetic evidence, scientists attempt to map the evolutionary pathways of all life on Earth. Historically, scientists organized organisms into a taxonomic classification system. However, today many scientists build phylogenetic trees to illustrate evolutionary relationships.

20.2 Determining Evolutionary Relationships

To build phylogenetic trees, scientists must collect accurate information that allows them to make evolutionary connections between organisms. Using morphologic and molecular data, scientists work to identify homologous characteristics and genes. Similarities between organisms can stem either from shared evolutionary history (homologies) or from separate evolutionary paths (analogies). Scientists can use newer technologies to help distinguish homologies from analogies. After identifying homologous information, scientists use cladistics to organize these events as a means to determine an evolutionary timeline. They then apply the concept of maximum parsimony, which states that the order of events probably occurred in the most obvious and simple way with the least amount of steps. For evolutionary events, this would be the path with the least number of major divergences that correlate with the evidence.

20.3 Perspectives on the Phylogenetic Tree

The phylogenetic tree, which Darwin first used, is the classic “tree of life” model describing phylogenetic relationships among species, and the most common model that scientists use today. New ideas about HGT and genome fusion have caused some to suggest revising the model to resemble webs or rings.

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Teaching Strategies | Quizlet

Pros & Cons of Using Quizlet in Your Classroom

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July 23rd, 2019 | 7 min. read

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Setting your students up for success means so much more than teaching daily lessons and hoping students do well on assessments.

You need to teach the information and then provide effective ways for your students to review what you’ve taught!

Some teachers like to create customized study guides and booklets for their classes, but that takes a lot of time and effort outside of school hours.

That’s why so many teachers consider using Quizlet, an online study tool, to save time when helping students prepare for tests!

But before you jump right into adding a new tool to your classroom, it’s important to understand the pros and cons of Quizlet to help decide if it’s right for you and your students.

In this blog, we’ll discuss the biggest pros and cons of using Quizlet to make your decision a little easier.

However, before we jump in it’s important to answer one other question -- what exactly is Quizlet?

What Is Quizlet?

Quizlet is a web-based application developed to help students study information through interactive tools and games.

In Quizlet, information is organized into “study sets” that users like teachers or students add to their accounts.

When using Quizlet, students log in and choose the appropriate study set for the concepts they need to review. These can be created by a teacher or generated by other users.

Because of the flexibility and customization available, Quizlet can be used in any grade level and any type of class.

That means whether you’re a middle school career readiness teacher or a high school health science teacher, Quizlet can help your students study.

Now that you have an idea of what Quizlet is and how it works, let’s get into the benefits it provides to you and your students!

3 Pros of Using Quizlet

Overall, Quizlet can be a great tool for you and your students for three reasons:

• You can easily differentiate review for your students
• You can incorporate collaboration and teamwork into your classes
• Students have another way to prepare for tests

1. Quizlet Helps You Differentiate Review for Your Students

Quizlet has seven standard study modes that help students review in the way that works best for them :

• Flashcards – A quick way to review terms and definitions, just like paper-based flashcards
• Learn – A personalized study mode based on how well you know information in a study set
• Write – A fill-in-the-blank style study tool
• Spell – A study mode that dictates a term or definition that you must correctly type
• Test – An easy way to quiz yourself on how well you know information in a study set
• Match – A time-based game where the student must match terms and definitions
• Gravity – A level-based game where the student must answer correctly before being hit by an asteroid

When you create study sets for your students, you decide which modes to use based on how your students learn best.

Some study modes, like Flashcards, include text-to-speech audio prompts that help ELLs and students with IEPs learn and remember information.

You can also include images and diagrams as needed to provide better context for your students.

With all of these options, you’re creating a customized way for your students to review information, without you having to do a lot of extra work!

2. Quizlet Helps You Incorporate Collaboration and Teamwork Skills

It’s not always easy to teach collaboration and teamwork skills, but with Quizlet you can do it while helping students review.

Quizlet Live is an in-class game that teachers can use to help students review information while working together in teams.

The game randomly sorts students into teams to match terms and definitions, and the first team to correctly answer all of the questions wins!

Quizlet Live is fully focused on accuracy over speed. If a team answers any question wrong, they have to start over from the beginning.

This ensures your students’ competitive spirit won’t override the need to answer correctly.

3. Quizlet Helps Students Prepare for Tests

Ultimately, the other pros of Quizlet tie into this final benefit: Quizlet helps students prepare for tests!

With the engaging study tools and differentiation options available, your students have so many different ways to study information when using Quizlet.

Instead of having to look through notes, fill out worksheets, and create paper flashcards, they can just log in and start studying!

On top of that, if your students have a mobile device, they can download the Quizlet app to review information anytime, anywhere.

That means your students will have more flexibility to study what they want, when they want, and in the way they want.

Talk about the perfect way to set students up for success on test day!

But no study tool is ever perfect.

So now that we’ve shared the three biggest benefits of Quizlet, it’s time to talk about the cons.

3 Cons of Using Quizlet

Though Quizlet is designed to help students learn information, there are three specific drawbacks that can impact your student’s learning:

• Students can get distracted by ads
• Students could learn incorrect information
• Students may use Quizlet to cheat

1. Students Can Get Distracted by Ads on Quizlet

If you and your students use the free version of Quizlet, you’ll see ads on every page of the website.

Some ads are easy to ignore, but they can be overbearing. These ads are actually designed to distract your students away from learning.

You can upgrade to the paid version of Quizlet to remove the ads, but that may not fit into your classroom budget when there are more important things to purchase!

2. Students Could Learn Incorrect Information on Quizlet

Because Quizlet allows any user to create and share a study set, there is no guarantee the information is accurate.

If a student logs in and chooses a set created by someone else, there’s a possibility they could accidentally study incorrect information!

One typo in someone else’s cards could lead your student to studying the wrong information, miss questions on a test, and get a low grade they didn’t expect to receive.

Though you can instruct your students to only use the sets and games you’ve created, students can still come across other ones on their own.

3. Students May Use Quizlet to Cheat

If you create Quizlet sets for each assessment in your class, you’re providing excellent resources for your students.

But dishonest students may take advantage of those study tools to cheat on their homework and assessments.

Even though Quizlet doesn’t allow cheating or academic dishonesty , some students will push the boundaries and find ways to cheat.

It’s as easy as a student Googling a homework question, finding a Quizlet set, and copying the answers straight from the website.

In fact, it’s so easy that it may not even feel like cheating. Students might just want more information on a certain topic and stumble upon direct answers to their homework.

Cheating isn’t a problem unique to Quizlet, but it’s one of the most common issues for teachers using this tool.

To curb cheating with Quizlet, you can adjust the settings of your study sets or change the wording of your questions.

But there’s no way to keep other users from posting the information found on your assessments.

You can request for Quizlet to remove content that has been used for cheating , but even after the set is taken down, another one could pop back up in a matter of hours!

With these three pros and cons, there’s still one question left to answer -- should you use Quizlet?

Should You Use Quizlet?

When it comes down to using Quizlet, it all depends on the balance of pros and cons you’ll get from using it.

If you want to provide a customized study tool for your students to memorize and review specific terms and concepts, Quizlet could be perfect for you.

But if you start to notice a suspicious pattern of exceptionally good grades and word-for-word answers, it may be time to cut Quizlet from your teaching strategy.

While this decision is ultimately up to you, you can always ask other teachers for their thoughts!