Before a cell divides, it copies all of its chromosomes. while the two copies of a chromosome are attached they are called

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..

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

What abo controlling alleles could kim give her child