Name the three white poisons which should be eliminated ( but I'm addicted to...):-P

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Explain how scientists use geologic time to determine the age of landforms.

This is a situation in which genes are attached to an organism's sex chromosomes; the sex of an organism influences the expression of a gene.