All but one description applies to the structure of rna. that is a) four nitrogenous bases. b) double-stranded molecule. c) contains a phosphate group. d) 5-carbon sugar called ribose.

Environmental differences within ecosystems are generally caused by

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

In which terrestrial biome can you find trees that produce cones instead of flowers and needles instead of leaves? have trees that produce cones instead of flowers and needles instead of leaves. the latitudes in this biome have evenly distributed precipitation throughout the year. is it high or low