What is found in the central cavity of an adult long bone?

A) red marrow
B) yellow marrow
C) calcium deposits
D) collagen
E) spongy bone tissue

Four of the five answers listed below are targets of the immune system. Select the exception.

A) virus
B) normal cells
C) cancer cells
D) bacteria
E) debris and dead cells

An abnormal, exaggerated response of the immune system is called ________.

A) immunization
B) an innate immune response
C) hypersensitivity
D) excess immunity
E) tolerance

Carbonic anhydrase

A) is a digestive enzyme.
B) is dissolved in plasma.
C) speeds up the conversion of carbonic acid to carbon dioxide and water.
D) speeds up the conversion of carbon dioxide to oxygen.
E) speeds up the conversion of oxyhemoglobin.

Which statement about early embryonic development in humans is FALSE?

A) The embryo is moved along the oviduct by ciliary action and muscular contraction.
B) The embryo develops through the blastula stage while floating free in the uterus.
C) The embryo enters the uterus about 24 hours after fertilization.
D) Early division of the embryo occurs in the oviduct.
E) Implantation of the embryo occurs about seven days after fertilization.

ruptures in Earth's crust where plates meet

A) fault
B) trench
C) ridge
D) hot spot
E) plate tectonics

Which refers to the addition of a repeat segment of a chromosome?

A) inversion
B) translocation
C) deletion
D) duplication
E) monosomy

One characteristic of the immune response is specificity. This means that

A) immunity starts in defined organs in the body.
B) immunity starts in specialized tissues in the body.
C) immunity is carried on by a specific group of cells of the immune system.
D) immunity is directed against a particular pathogen.
E) immunity is carried on by a specific group of tissues of the immune system.

Impulses from the eye result in sight perception and impulses from the ear are perceived as sound. This is due to

A) the neurons of the receptor, which use different ions to send signals to the brain.
B) the neurons of the receptor, which send signals at different frequencies.
C) the final destination of the signals. The signals from the eye travel to the visual perception region of the brain; auditory signals go to the hearing section.
D) the type of signal sent by the neuron, for example, either a visual pattern or a sound pattern as the signal travels through the nerves.
E) the different receptors (photoreceptors, mechanoreceptors) that are completely different types of nervous tissue cells.

Which of the following does not tend to be a problem with the labor relations system in China?

A) Workers lack a True freedom of association because the ACFTU is the only legally approved union organization
B) The ACFTU has not pushed for stronger labor legislation and labor reform at either the national or local levels
C) The ACFTU is closely intertwined with the Communist Party and therefore not independent of the political system
D) Enforcement of labor laws is not a given; rather, it is dependent upon complex dynamics between local union officials, managers, and local government officials