eat their way through the soil, feeding on partially decayed organic matter
which of the following is mismatched with its function?
Vitamin K-blood clotting
Blood pressure is highest in__, and blood moves most slowly in ___.
arteries, capillaries
Pauls blood pressure is 150/90. The 150 indicates ___ and the 90 indicates ___.
pressure during ventrical contraction, pressure during heart relaxation
Foreign molecules that elicit an immune response are called__
antigens
Which of the following best describes the difference in the way B cells and cytotoxic T cells deal with invaders?
B cells send out antibodies to attack, certain t cells can do the attacking themselves
Cytotoxic T cells are able to recognize infected body cells because
the infection changes the surfaces of infected cells
__ attacks infected body cells
Cytotoxic T cell
__Carries out the humoral immune response
B Cell
__Causes allergy symptoms
Mast Cell
___Phagocytic white blood cell
Macrophage
General name for B or T cell
Lymphocyte
___Carries out secondary immune response
memory cell
Cell most commonly attacked by HIV
Helper T Cell
The main difference between endotherms and ectotherms is?
the source of most of their body heat
Which process in the nephron is least selective?
filtration
You place your hand on a black car hood in bright summer sunshine. The car hood was heated by the process of ___ and your hand was warmed by the process of____
radiation, conduction
Which of the following is not an adaptation for reducing the rate of heat loss to the environment?
contraction of flight muscles before a moth takes off