Carbohydrates, lipids, proteins, and nucleic acids are the four biomolecules critical for the structure and function of living things. Examine some of the common functions of the biomolecules. Which of these is a function of carbohydrates? Choose ALL that apply.

a - stored energy
b - chemical messengers
c - fast cellular energy
d - plant cell wall composition
e - regulation of cell processes

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geographical equipment to analyze the composition of rocks

Which organism can most likely be classifild as domain bateria

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?