How does our DNA cause us to have physical traits?

The reason is that your DNA is a mixture of your mother and father’s DNA. This is why some of your physical features may resemble your mother’s while some may resemble your father’s. Half of the DNA used to create your body came from your mother while the other half came from your father.

Explanation:

he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.