The body tolerates a wide range of many variables such as blood glucose and sodium plasma levels. Why do you think that is there much less variation tolerated in oxygen saturation? PLEASE HELP

Secondary pollutants are more harmful than primary pollutants. select the best answer from the choices provided ot of

Which best describes how parents affect the genotype of a child? a.the parents decide what to feed their child b.the parents choose whether to educate their child c.the parents allow their child to stay up late d. the parents pass along genes to the child

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated