Answer:
Mutualism
Explanation:
Definition: symbiosis that is beneficial to both organisms involved.
Being able to do high intensity cardio for more than 45 minutes
Vestigial structures are parts of an animal's body that serve no function, but did in earlier evolutionary stages. Two examples of this are the human appendix and the snake pelvic bone.
Answer: Marine environments provide the perfect habitat for these seagoing birds. They can be found in tropical and subtropical regions of the west coast of Central America, and northern South America.
Explanation: