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Puberty usually begins between the ages of

9 and 15

in which order to the affects of childbirth of child occur

amniotic sac breaks, contractions, umbilical cord is cut, placenta and amniotic sac are expelled from the uterus

proteins that tag pathogens for destruction by immune cells are called


Joe has noticed of irregular shape and color, what might this be an early sign of

skin cancer

the primary function of the sensory division of the peripheral nervous system is to transmit impulses

from sense organs to the central nervous system

an example of foods high in fiber is

whole grain bread

which structure in the ear contains tiny hairs that send nerve impulses to the brain, which processes them as sound?


what structure serves as a passageway for both air and food


through which path does blood typically flow through the circulatory system


nail roots are to nails as what is to hair

hair follicle

the function of the excretory system is to control homeostasis and

remove wastes

which of the following foods is a major source of vitamin d

milk, yogurt, and cheese

refer to figure 31-1, which structure carries impulses away from the cell body


refer to figure 31-1, which structure carries impulses to the cell body


what muscular tube carries food between the pharynx and the stomach


the sudden death of brain cells when their blood supply is interrupted is called

a stroke

the most commonly reported bacterial infection in the united states is


which hormones stimulate the gonads to mature

FSH and LH

Which body system is directly affected when a person has heart disease

circulatory system

which type of blood vessel carries blood away from the heart


which of the fives senses involves two types of photoreceptors called rods cones


the germ theory of disease states that infectious diseases are caused by


the bodes most important nonspecific defense is

the skin

for a person who writes with his or her left hand, the muscles involved in writing are controlled by

the right hemisphere of the cerebrum

the nervous system is to a telephone as the endocrine system is to a

radio broadcast

when you take a deep breath before diving underwater air is forced into your lungs by the contraction of your


in the kidneys, both useful substances and wastes are removed from the blood by


which type of muscle can contract without stimulation from the nervous system


which step in figure 35-2 shows a virus being consumed by a cell


in figure 35-2, which structure will respond quickly if the same virus invades the body again

memory t cell

which step in figure 35-2 shows the destruction of an infected cell?


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