Scientists hypothesize that there are no dinosaurs alive today because

a. an ice age froze all the dinosaurs
b. they were all killed when a large meteor hit earth
c. they could not adapt to a new environment to avoid extinction
d. mammals out-competed the dinosaurs for food and living space.

thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

she will be charged $6

step-by-step explanation:

48 dollars divided by 200 beads equals .24 dollars a bead

.24 multiplied by 25 more beads equals 6 dollars as the total cost