Why does adenine always pair with thymine and guanine always pair with cytosine? What two factors determine the base pairing rule?

A. space between nitrogenous bases and opportunity for covalent bonds

B. space between nitrogenous bases and opportunities for hydrogen bonding

C. space between nitrogenous bases and the opportunity for ionic bonding

D. space between ritrogenous bases and the opportunity for metallic bonding

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.

answer;

c. a tree whose roots are surrounded by wet sand.

explanation;

water stress is an important factor limiting the growth and productivity of forests.water stress is the most often cited cause of poor survival and growth of woody landscape plants.

-insufficient soil moisture is the most common form of water stress, but excess moisture that leads to poor soil aeration (hypoxia) can also result in reduced plant vitality. a tree whose roots are surrounded by wet sand would be least likely to experience water stress.