5. Which layer of the skin lacks a blood vessels? (1 Point)
Dermis
Epidermis
Hypodermis
Subcutaneous Layer

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

How energy move through ecosystem ?