Start New Topic
  • Your 24/7 Study Community
    Let our members and experts help you today.
    Ask a question on your homework, textbook problem or any subject topic.
    Answer other members' questions for self-practice, posting credits, and goodwill.
  • Learn more...  What type of user are you?
    High School Student College Student Parent Educator Subject Enthusiast
  • Ace Your Classes
    with the help of Biology Forums' online study community...
    ...where you can find real help from students, educators, and subject enthusiasts.
    It's free!
    Join Today
Who Are We?
Biology Forums - Study Force is a global study community comprised of students and teachers helping each other understand how to solve problems for science, business, nursing, humanities, and mathematically-based subjects.
Q and A Experts
Study Resources
We provides access to various types of study material (e.g. textbook solutions, topic notes, sample problems, illustrations, practice exams) created by us, indexed from the web, or contributed by our members.
Video Tutorials
Textbook Solutions
Our tools, content, and community empower students to push the limits of their learning capabilities.
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 25,000 diagrams, photos, and illustration?
Our Videos are Simple, Yet Effective
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.
Block Island TV currently sells large televisions for $380. It has costs of $290. A competitor is bringing a new large television to market that will sell for $310. Management believes it must lower the price to $310 to compete in the market for...
The U.S. Patent Office opened in 1838 it has granted more patents for mouse traps
  than for any other invention.
  A) 1838, it B) 1838; it C) no change
If someone uses features such as rhyme and meter to form an understanding of Wordsworth's The world is too much with us, that person is exercising which step in the process of forming a personal critical response?
An astronomer discovers an object at a distance of 28 Mpc from the Earth.  Based on the distance, which of the following is this object most likely to be?
A)   A comet in our solar...
Those most successful at selling western lands to settlers were:
A) the federal government.
B) big-time land speculators.
C) the railroads.
D) state governments.
Which culture used structures that were meant to protect the inhabitants against extreme weather conditions?
A. Nok
B. Kongo
C. Bantu
D. Mousgoum
The key to the economic survival of the nomadic tribes of the Great Plains was the:
A) deer.
B) raiding white settlements and railroad crews.
C) raiding settled tribes.
D) buffalo.
Drawing a large circle on a chalkboard is possible by means of ________ at the shoulder joint.
A) rotation
B) opposition
C) circumduction
D) inversion and eversion
E) external and internal rotation
Explain the properties of an artesian well.
Explain how the properties of conformality and equivalence always pose a dilemma to the mapmaker.
What is the probability that a gamete from an individual with the genotype E1E2X1X1A1A2M2M2 will contain all paternally derived homologues?
A) 1/6
B) 1/4
C) 1/8
D) 1/16
When covering a patient's mouth and nose with a mask of any kind, which of the following is the primary risk?
A) Upsetting the patient because of the social stigma
B) Obstructing the ability to visualize and protect the airway
We're Social
Follow us on your favorite social media platform