• Your 24/7 Study Community
    Let our members and experts help you today.
    Ask a question on your homework, textbook problem or any subject topic.
    Answer other members' questions for self-practice, posting credits, and goodwill.
  • Learn more...  What type of user are you?
    High School Student College Student Parent Educator Subject Enthusiast
  • Ace Your Classes
    with the help of Biology Forums' online study community...
    ...where you can find real help from students, educators, and subject enthusiasts.
    It's free!
    Join Today
Who Are We?
Biology Forums - Study Force is a global community comprised of students, educators, and enthusiasts helping each other understand how to solve problems in sciences, mathematics, business, nursing, humanities, and many more subjects.
Q and A Experts
Gallery
Study Resources
Dictionary
We provide access to various types of study material, including textbook solutions, topic notes, sample problems, illustrations, and practice exams that are created by us, indexed from the web, or contributed by our members.
Blogs
Video Tutorials
Flashcards
Textbook Solutions
Our tools, content, and community empower students to push the limits of their learning capabilities.
4.8M
Total Posts
1.9M
Total Topics
26.7K
Members Registered this Year
0
Guests Browsing
0
Members Online
0
Registrations Today
From Our Gallery
Enhance your visual learning  Download and share pictures with your free membership.
What better way to learn than with access to over 35,000 diagrams, photos, and illustrations.
 29349
Comparative structure of arteries, capillaries, and veins.
 691
The human brain
 545
Nonanthropoid Primates: Lemur
 1006
Male and female Lions (Panthera leo)
 735
Example of inflammation as a response to bacterial infection.
 560
Hydrostatic Skeleton: Earthworm
 6455
Negative feedback as a mechanism by which homeostatic control systems operate.
 740
Taste receptors in the human tongue
 562
Joint anatomy.
 4218
A treatment for blocked blood vessels.
 3156
Eye Anatomy of a dog
 76324
Generalized flower structure.
 363
Fossil Skeleton: Ichthyosaur
 362
Overview of transcription and translation
 237
A Mitochondrion
 5361
Ancient Warming Shrunk Horses to Housecat Size
 3109
Structure of a mitochondrion
 507
Scorpion
 52
Translation of mRNA
 995
Anthrax bacteria (Bacillus anthracis)
 749
Trichomes are hairs or other fine outgrowths of epidermal cells
 553
Side view of a jumping spider making a leap
 1121
Phobos in color by Mars Reconnaissance Orbiter - HiRISE
 424
Metabolic receptors
 42
Relationship of a DNA base sequence to peptide structure
 558
Evolutionary Tree for Chordates
 322
Fossilized Footprint: Therapod
 823
Cross-section of a human molar
 650
Reorganization of the rat motor cortex following transection of the motor neurons that control ...
 381
Outline of Meiosis II
 381
Fruit Development
 179
Alcohol metabolism
 1337
Bullet Ant
 32690
A simplified food web from an African savannah ecosystem
 522
Neuron and Astrocytes
 651
A fly on a Venus Flytrap plant.
 5852
The vertebrate endoskeleton.
 459
Life cycle of a Plasmodium species that causes malaria
 7008
Body plan of an echinoderm, as represented by a sea star.
 684
Dispersal Routes of Homo sapiens
 332
Genes on chromosomes
 448
Salt grains up close
 67677
Parenteral medication administration. The angle of needle insertion for four different types of pare
 463
Earthworm anatomy
 428
Amniote Eggs: Snakes
 558
Turtle Skelton
 6034
Types of variation in chromosome number.
 294
Benign and malignant neoplasms
 11208
Examples of epithelial tissue.
 394
Genetically Modified Chicken
Our Videos are Simple, Yet Effective
Skip the theory  The best way to learn is by watching tons of video examples.
Get right to answering questions with step-by-step explanations in HD quality!
Man-in-the-Middle Attack on D-H Key Exchange
Reducing Ratios with Terms that are Decimals / Fractions
Diffie-Hellman Key Exchange Protocol (Step-by-Step) #cryptography
Reading a Tape Measure #trades
Solving a System of Linear Equations Graphically
Basic math - Long division with decimal numbers
Solve Basic Percent Change Problems
Solve Basic Percent Proportion Problems (Using BR = P)
Converting Between Fractions and Percentages with Repeating Decimals #basicmath #fractions
Solving Proportions by Cross-Multiplication #equations #fractions
Finding the Generators of Z*_7 #numbertheory #grouptheory
Merkle-Hellman Knapsack Algorithm Part 2: Encryption and Decryption #cryptography #algorithm
Merkle-Hellman Knapsack Algorithm Part 1: Generating the Public Key #cryptography #algorithm
Internal Rate of Return (IRR) Calculation #finance #investments
Finding the Modular Inverse #numbertheory
Online Flashcards
Study, learn, and test youself  Whether you want to memorize every bone in the body or prepare for the upcoming MCAT, our web-based flashcard maker has you covered.
Lakeshore Tours Incorporated, operates a large number of tours throughout the United States. A study has indicated that some of the tours are not profitable, and consideration is being given to dropping these tours in order to improve the...
Quiz Me
Which characteristic is common to all four-wheel-drive vehicles?

▸ They transmit more power to the rear wheels.

▸ They use a differential at both axles.

▸ They use CV joints at the front axle.

▸...
Quiz Me
What is the consequence of operating a part-time system in 4WD on dry surfaces?

▸ Driveline windup

▸ Oversteer

▸ Seized clutch

▸ You cannot shift on the fly.
Quiz Me
What is the primary difference separating an authentic performance from a mediated performance?
 
  A) timeliness
  B) quality
  C) subject matter
  D) audience feedback
Quiz Me
With which component does the clutch friction disc always rotate?

▸ Transmission input shaft

▸ Engine crankshaft

▸ Pressure plate

▸ Flywheel
Quiz Me
A bike shop reduces the price of a bike for quick sale from $455.00 to $395.00. Compute the markdown correct to the nearest 1/100 of 1%.
Quiz Me
Virtually all operating systems come with tools to manage the hard disk. The vast majority of these tools are unable to read metafiles such as the $MFT file in Windows 7. Why is this?

▸ The $MFT file is actually not part of the...
Quiz Me
If 12 V and -19 V sources are connected so their total voltage is -7 V, they are ________.
 
  A) in parallel B) series opposing
  C) connected dangerously D) series aiding
Quiz Me
Which theoretical approach to international politics largely draws inspiration from Karl Marx and regard transnational economic elites as key actors?
a.   Constructivism
b.   Liberal-internationalist
Quiz Me
How much Dextrose 70% must be mixed with SWFI to prepare 2 L of Dextrose 5%?
A) 143 mL
B) 153 mL
C) 1,847 mL
D) 1,857 mL
Quiz Me
In 1967 a team of Russian scientists smashed a neon nucleus into an americium target. Given the balanced nuclear equation, what is the new nuclide?
    Am +  Ne ?  X + 5  n
A)  Db
B)  Db
Quiz Me
What is the advantage of using the OBD-II system for emissions testing?

▸ Decreased cost

▸ Better accuracy

▸ Takes less time

▸ Easier to administer
Quiz Me
We're Social
Follow us on your favorite social media platform