Which segmented worm may be used in medicine to prevent or break down blood clots? earthworm
leech
marine worm
tapeworm

Aseries of connections of food chain in an ecosystem is called a what

Arepair man charged $93.06 the price included 2 hours of labor and 40 service charge how much does the repairmen charge per hour for labor?

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen