The hallow bones of a bird are an example of an . a. external adaptation
b. internal adaptation

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

An example of a trait that would be considered acquired and inherited is a. a cleft chin b. muscle tone c. scar tissue d. freckled skin

[34 points awarded to the best answer, use facts and/or data] 1.) what's the likelihood of thunderstorms occurring in the state of maryland? {this question is for a project for science, use facts and/or data and explain why . 34 points to the best answer]