Why chondrichthyes have ventral mouth?

What chemistry law is used when the temperature rises and tire pressure rises? Where is 38n 145e? Forming small like or nipple like projections of cells is called what? How many unpaired electrons in KMnO4? Where is the central vacuole located? What is a tiny bit of land called? What occurs in the living part of the water cycle? What does 925 9nv mean in a diamond ring and are they real? What are cells and other undissolved particles in blood called? What is the line of latitude that separates the north and south hemisphere? A point mutstion occurs in a sex cell of an adult rabbit. the gene affected by the mutation is responsible for proteins that heart muscles. which describes the most likely effect off this mutation? How many moles present 2.45x1023 molecules of CH2? Why was fluorescence invented? What is the Definition of flow of gas? What are Four things that depends on weather? How did the atomic bomb work? When using the high power objective only the blank nob should be used? What is inflammation of the adrenal glands? What phosphate groups are polar part of the phospholipid because they are? What is a sentence with solstice?