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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.
 457
Karenia brevis
 1826
Muscle Tissue Components
 785
Spider (tarantula)
 480
Root uptake of soil water
 388
Movement of acorns by blue jays allows gene flow between oak populations
 562
Joint anatomy.
 469
Some skeletal differences between a knuckle-walking gorilla and a bipedal human
 465
Embryonic development of shepherd’s purse (Capsella), a eudicot
 237
A Mitochondrion
 995
Anthrax bacteria (Bacillus anthracis)
 3476
The Sun in false-color ultraviolet image
 5361
Ancient Warming Shrunk Horses to Housecat Size
 4497
Changes in metabolic rate of selected structures in a mammal's body during different activities
 582
Famous People with Parkinson's Disease
 498
Effects of Continental Drift
 460
Adaptive Immunity
 421
A Bird Egg
 2082
Neoteny in Evolution of the Human Skull
 650
Reorganization of the rat motor cortex following transection of the motor neurons that control ...
 497
Adult sponge, with a porous, asymmetrical body.
 448
Salt grains up close
 523
Main components of the human endocrine system and the effects of their secretions
 67677
Parenteral medication administration. The angle of needle insertion for four different types of pare
 362
Overview of transcription and translation
 537
Example of a coordinated interaction between skeletal muscle tissue and nervous tissue
 726
Cardiac conduction system
 1058
Solar Eclipse
 743
Primary growth in a root
 668
Placoderm with Paired Fins
 3003
The muscle-spindle feedback circuit
 484
Synaptic Density
 3187
From left to right: Size development, biometrical changes in the cranium, reduction of toes ...
 557
The periodic table and its creator, Dmitry Mendeleyev.
 426
The genetic code
 614
Photo of a lancelet
 1337
Bullet Ant
 805
Water-conserving structures in a transverse section of pincushion leaf (Hakea laurina)
 1243
The Structures of the Retina
 552
Loss of a Shoot Tip Ends Dormancy in Lateral Buds
 474
The Major Plant Groups
 448
Structure of a woody stem
 44
Punnett square
 566
Action Potential Membrane Potential
 560
Cerebrospinal Fluid
 455
Primate skin
 564
Exogenous Antigen Processing
 374
High in the Andes, a scientist measures the stride of a carnivorous dinosaur
 173
Electron Transfer Phosphorylation
 1029
Our Moon
 16162
The ovarian and uterine cycles in a human female.
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Man-in-the-Middle Attack on D-H Key Exchange
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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
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Finding the Generators of Z*_7 #numbertheory #grouptheory
Merkle-Hellman Knapsack Algorithm Part 2: Encryption and Decryption #cryptography #algorithm
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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.
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
What should be used to check the flatness when inspecting a flywheel?

▸ Dial indicator

▸ Alignment tool

▸ Torque wrench

▸ Straightedge and feeler gauge
Quiz Me
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