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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.
 308
Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ...
 108
Benign and malignant neoplasms
 1078
Bullet Ant
 440
Complete Lifecycle of a Frog
 354
Neuron and Astrocytes
 427
Functional categories of human genes
 275
Coelacanth
 4539
Variation in shape and length of nerve cells.
 6059
Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment.
 197
Mouse Cell Nuclei During Meiosis
 188
Genetically Modified Pig
 313
Wind that lifts the hairy modified sepals of a dandelion (Taraxacum) fruit may carry the attached se
 244
Early Earth
 351
Structures of the Human Eye
 366
Micrograph and graphic of a motor neuron
 1311
Getting Connected
 11724
Hormonal control of parturition.
 515
Sea Star Body Plan
 28839
Comparative structure of arteries, capillaries, and veins.
 403
Australia's spiny anteater, one of only three modern species of monotremes
 191
Amoeba, a single-celled heterotroph
 260
Turtle Skelton
 274
Action Potential Summary
 253
Flowering plant life cycle
 221
Cephalopod: Octopus
 6212
Tooth Anatomy
 110
Outline of Meiosis I
 138
The three phases of phagocytosis
 475
Life cycle of a club fungus having two mating strains of hyphae
 6782
Body plan of an echinoderm, as represented by a sea star.
 113
Checkpoint Genes in Action
 456
Primary growth in a root
 259
A Bird Egg
 4635
Major structures of the human brain.
 13377
Examples of sensory receptors in the skin of mammals.
 546
Miranda
 153
Morphological divergence among vertebrate forelimbs
 403
Trilateration GPS
 152
Red alga, a multicelled autotroph
 186
Example of cnidocyte action
 15782
The ovarian and uterine cycles in a human female.
 356
Xylem vessels
 374
Cerebrospinal Fluid
 719
Four cutaneous receptors that occur in human skin.
 950
Phobos in color by Mars Reconnaissance Orbiter - HiRISE
 244
Control of Respiration
 574357
Insect Spy Drone
 325
The photo is a cross-section of thickened human skin
 4299
Changes in metabolic rate of selected structures in a mammal's body during different activities
 255
Structure of a woody stem
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Wanda was speaking to a group of low-income senior citizens about the benefits of volunteering. She talked about how when she retired, she found volunteering to be rewarding even though it didn’t pay anything and she could have used the extra...
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Ms. Chun feels that students' progress is every bit as careful as their absolute achievement levels. She decides to supplement her existing assessments of teachers and school performance with measures that are more sensitive to students'...
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In impoverished communities in northeastern Brazil, infants who die are considered __________.
a. to be genetically inferior
b. to be uninterested in living
c. to be doomed from birth
d. to be the victims of their parents’ moral...
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Mary Anne is considering buying a home. She is currently renting and does not have to pay for some utilities, landscaping, taxes, repairs, or maintenance. While she is excited about living in her own home, she is worried about being responsible for...
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Which of the following is an element of appropriate interviewer self-disclosure?
 
  A) Related past personal life experience of the interviewer
  B) Interviewer observations, opinions, or feelings toward the client...
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Which of the following statements about marital satisfaction appears to be true?
a. It is low for elderly couples.
b. It is highest for young adults.
c. It may reach its highest level during late adulthood.
d. It is highest for...
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A jewelry store invited a celebrity to inaugurate one of its stores. Subsequently, when the chain opened other stores across various cities, they used the same celebrity's face on billboards and advertisements.
 
  This was done...
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At the Quebec City Free Trade Area of the Americas (FTAA) protest in 2001, the government created a temporary by-law stating that no one in the vicinity of the trade talks...
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Authorities recommend the use of guide dogs as the most efficient mobility aid for most persons who are blind.

• true

• false
Quiz Me
How many mutually unintelligible languages have been identified?
a.    less than 1000
b.   2000 – 3000
c.    4000 – 5000
d.   more than 6000
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Why might a moon's orbit be used to evaluate if it was a primary moon, formed at the same time as the planet or a feature (asteroid or comet) that was captured by the planet's gravity?
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Many people know that gas prices keep increasing but Kirk wants to let his audience know how negotiations with the Middle East have played a part in this increase. His purpose is to __________.

▸ introduce an action

▸ set...
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