If you lay your forearm along the table, you can rotate it so that your hand changes from a palm-down to a palm-up position. This is possible because your radius and ulna join at a ________ joint

A) ball-and-socket
B) hinge
C) pivot
D) twist


C

Biology & Microbiology

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Discuss factors that must be taken into account when setting standards for safe levels of exposure to potentially harmful chemicals in the environment. Explain why setting these standards is such a complex task

What will be an ideal response?

Biology & Microbiology

The organism labeled B in the accompanying figure is a common ancestor to:


a. organism 2 only.
b. organism 3 only.
c. organism 5 only.
d. organism 6 only.
e. organisms 2, 3, 5 and 6.

Biology & Microbiology

Which of the following statements concerning the phosphorus cycle in bacteria is TRUE?

A. The element cycles between different organic molecules. B. It is the most important process for synthesizing proteins and nucleic acids. C. The element alternates among several oxidative states. D. The element changes from insoluble to soluble forms. E. The element is converted to a gaseous state and is lost to the environment.

Biology & Microbiology

Which febrile disease with a rash has a pathogen that can cross the placenta and cause serious fetal damage?

A. Croup B. Mumps C. Rubella D. Measles (rubeola) E. Influenza

Biology & Microbiology