Will give brainily rewards 3 questions thats i need help with
1. which terms are synonymouse
a haversian system; osteons
b lacuna;trabeculae
c hematoma; medullary canal
foramen ; hyoid

2 as humans enter old age they all:
a gain weight
b shrink in height
c gain muscle density
d experience muscle straines

3 ribosomes are to the RER as
water towers are to fire fighters
b tires are to car
c gas station are to a highway
d proellers are to a helicopter