Which of these is an adaptation for efficient gas exchange in the alveoli.

The different forms of a gene for a given trait are called .

Which group of college students is typically offered scholarship? a. freshmen, sophomores, and juniors. b. biology, english, and engineering majors. c. hard workers, part-time students, and out of state students. d. first time freshmen, current students, and transfer students.

All of the following are typical ways through which to find an apprenticeship except: a. guidance counselor b. trade association c. a vocational school d. job postings