The shape of the dna molecule is called a double . the backbone of dna is made of molecules and phosphate molecules. the "rungs" of dna are made of bases.

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.

What happens to a food web when deforestation occurs due to urbanization? how does it effect the carbon cycle? how does this relate to photosynthesis?

The footprint of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils a. body b. amber c. trace d. index