A volcano on a volcanic island erupts. (No life is present.) Which two-sphere are interacting? hydrosphere and geosphere

hydrosphere and atmosphere

atmosphere and lithosphere

biosphere and hydrosphere

Match the digestive enzymes to the macromolecules they to digest. break down fats into glycerol and fatty acids break down carbohydrates into simple sugars break down nucleic acids into nitrogenous bases and simple sugars break down proteins into amino acids

The table below shows the number of foot bones in some horse fossils. horse fossil recordhorse fossil number of foot bonesp 19q 17r 24s 13ancient horses had more bones in their foot then present-day horses. the present-day horse has 11 foot bones. what is the correct order of evolution of the horse starting from the youngest fossil? a. q p r s b. s r p q c. s q p r d. r p q s

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine