C. recycling
the rest are destroying the earth
They are two very different tunings. Urination is basically releasing your urine while the other one relates to releasing sperm..
1) the manipulative variable is the salt
2) the responding variable is how many purple eggs hatched
3) beaker A was the controlling variable
When a Stickleback fish feels threatened, it will flare out its pair of pelvic spines and three dorsal spines, making it difficult for predators to swallow them.
