In the food chain grass ,grasshopper, snake, hawk , which organisms are the heterotrophs?

Areal dna molecule consists of thousands of these pairs of nucleotides. what is the pairing arrangement of the nitrogen bases

What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean