Coral reefs have a symbiotic relationship with algae. Because of human activity, the ocean is absorbing high levels of carbon dioxide, which causes an increase in ocean temperature. <span>Due to these unfavorable conditions, corals expel algae, leading to bleaching. If corals go too long without algae, the corals will die. </span>
Answer: Coat color, body structure changes, etc
Explanation: Any type of trait can come from sexual selection, most of the time the animalswith the best traits survive to pass on their trait. There are lots of answers to this question becuase anything benifical to the animal is most likely to be passed on.
The function of the excretory system is to remove wastes (excrete wastes).
they can cause a toxic effect or failure of therapy depending on the drug-nutrient combinations
