Hammerhead sharks have weakly-muscled gills and must be in constant motion in the ocean in order to maintain a steady flow of water over their gills. The steady flow of water across their gills is necessary for – attracting mates.

staying warm.

attacking prey.

obtaining oxygen.

obtaining oxygen

Explanation:

because I said so

no statements shown

the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

answerlinnaeus;