A student is blood type A. His father was type A his mother was type Explain whether or not the student needs a genetic test to determine whet genotype is AA or , and provide reasoning to justify your answer.

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..

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.