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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.
 600
Structure of a woody stem
 317
Photo of a lancelet
 186
Example of cnidocyte action
 727
All human organ systems and their functions (Part 1)
 321
Exogenous Antigen Processing
 159
Electron micrograph of Euglena gracilis
 284
Secondary growth
 350
Evolutionary Tree for Chordates
 1857
DNA Among Species of Hominids
 375
Cerebrospinal Fluid
 526
Cardiac conduction system
 250
Insect Body Plan: Grasshopper
 496
A model of the 70 ribosome, with mRNA and tRNA bound
 456
Primary growth in a root
 420
Human urinary system
 262
Amniote Eggs: Snakes
 5965
A U-tube apparatus like the one used by Bernard Davis.
 564
Examples of drawings in each category of two object forms
 326
Use of Flight Muscles
 8645
Pancreatitis. Inflammation of the pancreas may be the result of a bacterial infection, trauma, or ch
 158
Sympatric Speciation in Wheat
 3316
The Sun in false-color ultraviolet image
 354
Neuron and Astrocytes
 248
Karenia brevis
 8613
The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
 86
Gregor Mendel
 377
Typical leaf structure of eudicots (left) and monocots (right).
 275
Coelacanth
 244
Early Earth
 130
Asexual Reproduction
 456
Reorganization of the rat motor cortex following transection of the motor neurons that control ...
 1078
Bullet Ant
 739
Our Moon
 11724
Hormonal control of parturition.
 475
Life cycle of a club fungus having two mating strains of hyphae
 2455
Paranasal sinuses are part of the upper respiratory system.
 221
Cephalopod: Octopus
 413
Paramecium
 3916
Mosquito Larva and Parasite
 335
Representatives of major orders of placental mammals
 129
Infected Tobacco Leaves by a Virus
 153
Morphological divergence among vertebrate forelimbs
 88
Telomeres
 263
Tadpole
 139
The three phases of phagocytosis
 240
Polyploidy increases fruit size
 357
The reflex arc
 5777
Different Types of Cells
 268
Lamprey
 277
Mammalian Teeth
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A P0422 (catalytic converter efficiency failure) is set. What is a possible cause?
A) Fuel contamination      B) Engine mechanical fault
C) Exhaust leak      D) Any of these
Quiz Me
Part A - Comparing species definitions
Three of the most prominent definitions of species are the biological species concept, the phylogenetic species concept, and the morphological species (morphospecies) concept.
Drag each characteristic...
Quiz Me
Programs like resolving conflict creatively and peer mentoring reduce violent and disruptive behavior in schools by
 
  a. having a common set of expectations, rules, and punishments for the entire school.
  b. using...
Quiz Me
Cultural materialism ________.
 
  a. is wedded to the emic approach
  b. emphasizes the etic approach
  c. avoids participant-observation
  d. was created by Ruth Benedict
  e. studies...
Quiz Me
Which of the following establishes the foundation for good patient care?
A) Using common sense
B) Asking open-ended questions
C) Eliciting a good history
D) Using active listening
Quiz Me
A 4.00 kg hollow sphere of radius 5.00 cm starts from rest and rolls without slipping down a 30.0 degree incline. The acceleration of the center of mass of the hollow sphere is

▸ 2.00 m/s2.

▸ 2.22...
Quiz Me
In speaking situations, elaboration refers to __________.

▸ the process of audience members abandoning one belief for another

▸ the incentive to do something that requires effort from the audience

▸ the...
Quiz Me
Which of the following is not related to the expansion of family therapy research in the 1990s?
 
  a. increased funding by the National Institute of Mental Health
  b. increased funding by the National Institute of...
Quiz Me
Question 1.The economists at the New York Fed estimate that the return the typical person receives from an investment in a college education is

• 4.5 percent per year.

• 12.5 percent per year.
Quiz Me
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...
Quiz Me
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'...
Quiz Me
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...
Quiz Me
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