the correct answer is c according to my mom. she is a doctor
Answer:
Birds have remarkably specialized bones that are pneumatic, because they are full of air sacs that provide a continuous flow of breath throughout their bodies. In short, their lungs are essentially hooked up to their bones.
Answer:
Which of the following structures are not involved in asexual reproduction? Gametes.
Explanation:
So option A. Have a great summer. This is the correct answer.
Living systems are open self-organizing life forms that interact with their environment. These systems are maintained by flows of information, energy and matter. Some scientists have proposed in the last few decades that a general living systems theory is required to explain the nature of life.