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Sidana [21]
3 years ago
12

Hammerhead sharks have weakly-muscled gills and must be in constant motion in the ocean in order to maintain a steady flow of wa

ter over their gills. The steady flow of water across their gills is necessary for –
attracting mates.

staying warm.

attacking prey.

obtaining oxygen.
Chemistry
1 answer:
tresset_1 [31]3 years ago
6 0
I’m pretty sure it is obtaining oxygen
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