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From Our Gallery
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 343
Early growth of corn (Zea mays), a typical monocot.
 409
Trilateration GPS
 292
Some skeletal differences between a knuckle-walking gorilla and a bipedal human
 283
Spore Bearing Structures of Pilobolus
 409
Xylem vessels
 271
Tadpole
 312
Dry outgrowths of the ovary wall of a maple (Acer) fruit form “wings” that catch the wind and ...
 264
Flowering plant life cycle
 115
DNA Sequencing
 1293
Balloon angioplasty
 285
Mammalian Teeth
 5100
Toucan uses beak to keep it cool
 291
Marsupials: Kangaroo
 1093
Top down view of Olympus Mons, the highest known mountain in the solar system
 133
Overview of translation
 790
A zebra orchid (Caladenia cairnsiana) mimics the scent of a female wasp
 254
Dust mite
 4307
Changes in metabolic rate of selected structures in a mammal's body during different activities
 394
Chlamydomonas Life Cycle
 5785
Different Types of Cells
 1087
Bullet Ant
 344
Three Types of Neurons
 31164
General Characteristics of Nervous Tissue
 139
Interphase in Plant and Animal Cells
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Diagram of the life cycle of Plasmodium falciparum, the causative agent of malaria
 179
Ionotropic receptor
 3322
The Sun in false-color ultraviolet image
 267
A Bird Egg
 1338
Tissue Repair, Aging, and Disorders
 248
Roundworm Body Plan
 206
Metabolic receptors
 429
Major muscles of the human musculoskeletal system
 357
Evolutionary Tree for Chordates
 187
High in the Andes, a scientist measures the stride of a carnivorous dinosaur
 1581
Effects of growth rate on development.
 296
Loss of a Shoot Tip Ends Dormancy in Lateral Buds
 487
A fly on a Venus Flytrap plant.
 204
The chromosome scaffold of a metaphase chromosome
 275
Epicatechin
 235
Types of Synapses
 2019
Size comparison of Earth and Mars.
 175
Red Algae
 75113
Generalized flower structure.
 269
Earthworm anatomy
 3490
Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome.
 582
Leaves of sugar maples (Acer saccharum)
 384
Action Potential Membrane Potential
 8654
Pancreatitis. Inflammation of the pancreas may be the result of a bacterial infection, trauma, or ch
 388
Myelin sheath
 120
Daphnia pulex
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Volume of a Frustum (Derivation)
Calculating the Interest Rate in an Annuity (Using Excel)
Handling Partial Periods with Drop and Balloon Payments #finance #annuities
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)
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.
Growth A scientist is running an experiment that involves waiting for a culture to grow. The average time for one experiment to run is 93 minutes with a standard deviation of 10 minutes.
a. If the...
Quiz Me
Omega Restaurant received an invoice dated July 22 from Industrial Kitchen Equipment for $3691, with terms 2/10, 1/20, n/45. Omega made payments of $1100 on August 1, $900 on August 10, and $800 on August 31. What amount was still owed on September...
Quiz Me
Two individuals, A and B, are free to engage in trade of clothing and food. Initially, A has 12 units of clothing and 9 units of food, and B has 8 units of clothing and 11 units of food. The individuals have the following utility functions in...
Quiz Me
Which of the following is a common complaint by older adult couples?
 
  A) Each partner complains that the other is a workaholic.
  B) They complain that they spend too much time together.
  C) They...
Quiz Me
Cross-culturally, children and adolescents view violations of moral issues as ________ than violations of social conventions.
a. less serious
b. just as serious
c. more serious
d. more difficult to understand
Quiz Me
Based on the 2007 TIMSS study on gender differences in mathematics achievement in U.S. students, which of the following is a correct statement?
 
  a. There are very few differences in math performance throughout elementary and...
Quiz Me
Which of the following statements was NOT true of Gothic architecture?
 
  A) Churches were constructed in a completely new style, with arches, buttresses, space, and light.
  B) Most cathedrals became a physical means...
Quiz Me
The energy of a photon of wavelength 400 nm is

▸ 3.11 × 10-19 J

▸ 3.50 × 10-19 J

▸ 3.87 × 10-19 J

▸ 4.25 × 10-19...
Quiz Me
Quiz Me
Probably the easiest, most versatile, and oldest method of decoration is
 
  a. carving.
  b. sewing.
  c. beading.
  d. painting.
Quiz Me
LaToya uses 50 newtons (N) of force to pull a 500 N cart. Which statements are correct about calculating LaToya's mechanical advantage? Select the two that apply.

a
The mechanical advantage is 100.
 b
The output force is...
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A new couple is completely enamored with one another.  They each believe the other is more agreeable and affectionate than they actually are.  What do you predict for the future of this couple based on research?
A) Positive illusions...
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