Which condition is characterized by attacks of pallor, cyanosis, and redness of the fingers and toes?

According to piaget, children have acquired the cognitive skill of conservation when they're able to a. understand that six ounces of liquid in a jar and six ounces in an elongated tube are equal. b. understand the viewpoint of other people. c. relate objects around them to their own needs. d. realize that the term heavy describes an object one way and the term big describes it another way. it is not b nor c. did this 2 x wrong..

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions