These models represent molecules that play a role in the immune system.
In which two ways do these molecules fight pathogens in the body?
A. They carry pathogens out of the body.
B. They eat pathogens that attack the body.
C. They recognize specific pathogens in the body.
D. They bind to pathogens that enter the body.

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

Common symptoms of an iron-defiency anemia include muscle weakness shortness of breath and lightheadedness why does iron deficiency causes these symptoms

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?