When earth moves around the sun, there are small variations in the position of a star as observed from earth. which of these is a method for finding accurately the distance from earth to a star, by calculating these small variations?

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes perform when constructing recombinant dna.

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Which material is commonly used as a culture medium for living cells