After a cookie has been eaten, sugar molecules enter the bloodstream by the process of

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation: