Can certain traits disappear in a family? why or why not?

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

One of the purposes of transcription is to produce a sequence of bases that

2. which of the following statements does not accurately describe stem cells? a. embryonic stem cells make up the inner cell mass of a blastocyst. b. with more research, stem cells may be used to repair or replace damaged cells. c. the use of stem cells is without any objections since it can be used in therapies to humans. d. adult stem cells are multipotent and can differentiate into many types of cells.