- Cephalopods show a much higher degree of structural and behavioral complexity than other groups of molluscs
What factors triggered the evolution of these changes? A rich fossil record shows that once they were very common
and even dominant in some environments. Now there are only about 650 living species of cephalopods, far fewer
than gastropods Were cephalopods successful? What do you think happened along the way?

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.

the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

explanation:

well, i believe that the answer is 2. : 3