Complete the statement to describe the calcium concentration that must be maintained in human body cells. The calcium concentration must be greater the cell than the cell.

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

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

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