To which part of the dna nucleotide do the letters a, t, c, and g refer? a. the phosphate group b. the nitrogen base c. the deoxyribose d. the amino acid group

When coal has reached it hardest, darkest form, it is called select one: 0 a. sub-bituminous b. lignite c. bituminous d. antrhacite next page

Need asap plz hurry im being timed when a body cell divides through the process of mitosis, the chromosomes in the daughter cells a. represent only the healthiest chromosomes from the parent cell. b. represent only half of the chromosomes in the parent cell. c. are identical to the chromosomes of the parent cell. d. are formed when chromosomes from the parent cell cross over.

Describe the trends in electron configuration in the periodic table by selecting the terms from the drop down menus