A place where living and nonliving things interact, such as forests and deserts is called a(n) ecosystem

population

community

habitat

Which of the following describes the difference in stimuli required to detect a difference between the stimuli? a. just noticeableb. signal detectionc. subliminald. top down

18. over time, how do sand dunes tend to migrate? a. perpendicular to the movement of the wind b. in the same direction as the wind blows c. toward the wind d. in random directions

Earth is tilted on its axis. which of these would not exist if earth had no tilt?