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What better way to learn than with access to over 35,000 diagrams, photos, and illustrations.
 552
Examples of drawings in each category of two object forms
 109
Overview of translation
 102
Alfred Wallace
 131
Fossil Skeleton: Ichthyosaur
 409
Taste receptors in the human tongue
 274
Life cycle of Obelia, a hydrazoan that has alternating medusa (left) and polyp generations
 225
Polyploidy increases fruit size
 271
Adaptive Immunity
 300
Development of the Dungeness crab (Cancer magister). The crabs live for 8 to 10 years.
 380
Bug depositing fertilized eggs on a pine needle
 249
Earthworm anatomy
 211
The Major Plant Groups
 846
Citheronia regalis
 363
Body Plan of a Crocodile
 77
Nondisjunction
 230
Wasp in Amber
 308
Example of a coordinated interaction between skeletal muscle tissue and nervous tissue
 1650
Muscle Tissue Components
 356
Cocaine’s Effect on the Brain
 353
Chlamydomonas Life Cycle
 266
Tree Rings: Pine
 259
Primate skin
 627
Anthrax bacteria (Bacillus anthracis)
 5944
A U-tube apparatus like the one used by Bernard Davis.
 404
Functional categories of human genes
 27504
An example of color blindness test. A person with red-green color blindness would not be able to dis
 349
The reflex arc
 3603
Actions of flexors and extensors.
 277
Relaxed and supercoiled DNA molecules
 260
Epicatechin
 359
Cerebrospinal Fluid
 15757
The ovarian and uterine cycles in a human female.
 4011
A treatment for blocked blood vessels.
 217
An Ediacaran Fossil
 437
Female burnet moths (Zygaena filipendulae) perch on purple blossoms
 112
Movement of acorns by blue jays allows gene flow between oak populations
 319
Early growth of corn (Zea mays), a typical monocot.
 180
Genetically Modified Chicken
 146
High in the Andes, a scientist measures the stride of a carnivorous dinosaur
 5087
Toucan uses beak to keep it cool
 865
Solar Eclipse
 430
Dispersal Routes of Homo sapiens
 4618
Major structures of the human brain.
 309
Body plan of a tomato plant
 843
Viking Lander 1 site February 1978.
 227
Early Earth
 96
Checkpoint Genes in Action
 32171
A simplified food web from an African savannah ecosystem
 126
Oligodendrocytes
 351
Micrograph and graphic of a motor neuron
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Calculating the Interest Rate in an Annuity (Using Excel)
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Future Value of Compound Interest Formula (How it Works and its Derivation)
Solving for the Number of Periods in an Annuity
Grade 6 Math Challenge: Average Speed 95% Get This Wrong!
Deriving the Geometric Series Sum Formula
Solving Promissory Note Problems - Calculating Discounting Time
Treasury Bill Calculations (T-bills)
Calculating Present Value of Annuity Due
Finance Trick to Paying off Your Mortgage Faster
Ordinary Simple Annuity Formula (How it Works and its Derivation)
Cavalieri's Indivisibles and the Area of a Circle
Calculating Real After Tax Interest Rate
Discount Loans Explained (when interest is paid upfront)
When in Rome (a tutorial on Roman numerals)
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Imagine you are sailing a yacht across the Caribbean. You have to sail through a shallow lagoon in order to reach port at an island ahead of you. It is night time, and you look up to observe a "quarter moon," such as the one pictured...
Quiz Me
The parathyroid is located behind the frontal sinus.
 
 Indicate whether the statement is true or false


(Q. 2) A thyroglossal cyst is also known as a thyrolingual...
Quiz Me
According to research by Guthrie, Seifert, & Kline, the ratio of disabled readers receiving special help to teacher should be no higher than
 
  a. 3 to 1.
  b. 4 to 1.
  c. 5 to 1.
  d. 6 to...
Quiz Me
Lily is researching job opportunities in her state for her upcoming speech on a career in phlebotomy. Each company website she goes to makes it a point to mention the company is an Equal Opportunity Employer. This reflects the _________ criteria for...
Quiz Me
A school administrator wants to identify the top 10 percent of the Grade 12 students in order to recommend them for scholarship competition at the highest rated university in Canada. What testing purpose would serve the administrator's...
Quiz Me
Who among the following provides a productive service?
A) Typewriter repairmen
B) Sellers of old 78-rpm jazz records
C) Organizers of a demolition derby
D) Mob hitmen
E) All of the above, if their services are demanded.
Quiz Me
The type of tree diagram associated with generative grammar is ideal for
 
  a. illustrating the contrasting meanings of an ambiguous sentence.
  b. helping students become proficient communicators in a new language.
Quiz Me
Does a 21 year old who inherited millions of dollars' worth of corporate stock and who never works supply anyone with productive services?
A) No, by definition.
B) Only if her wealth is invested in capital equipment that adds to...
Quiz Me
Which of the following is an example of a quality truth-in-menu violation?
 
  A) Using grade B eggs when the menu lists grade A eggs for that dish
  B) Describing a salad as using fresh lettuce and serving old,...
Quiz Me
When playing tic-tac-toe, young children sometimes miss the need to place a mark (i.e., X or O) to block their opponent from winning. Instead, they choose to place an offensive mark that gets them closer to having three marks in a row. This approach...
Quiz Me
A 0.700 g sample containing Ag2O and inert material is heated, causing the silver oxide to decompose according to the following equation:

2 Ag2O(s) → 4 Ag(s) + O2(g)

If 13.8 mL of gas are collected over water at 27°C and 1.00...
Quiz Me
You have just written a paper-pencil quiz for a unit on map-reading skills. Following the textbook's advice, you arrange the items by:
A) putting more difficult items, as well as those that require considerable thought, at the beginning of...
Quiz Me
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