The structure of DNA resembles a twisted ladder. Which structural components form the rungs of the ladder? A deoxyribose sugars
B phosphate groups
C nitrogenous base pairs
D ribosomes
answer is nitrogenous base pairs

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Dna and rna share a number of similarities,but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna