Which of the following accurately describes carbon atoms?

a. carbon atoms can bond to other carbon atoms.
b. when carbon atoms bond to other carbon atoms, they can only form triple bonds.
c. carbon atoms only have three electrons available for bonding.
d. carbon atoms are only found in two of the four main macromolecules

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Antoine manages a number of apartment buildings that use natural gas for heating, cooking, and laundry. the scatter plot shows the correlation between the outside air temperature and antoine's natural gas bill. which type of correlation does the plot illustrate?

Dna, in the nucleus carries the genetic code for making proteins in ribosomes. in the diagram, b, represents the proteins produced. dna cannot leave the nucleus to carry the genetic information to the ribosome where proteins are produced. how does the genetic code get from the nucleus to the ribosome? what does a represent? now