Answer:You will be doing many laboratory activities which require the use of potentially hazardous bacteria and chemicals.
Explanation:
Answer:
Tundra
Explanation:
Permafrost is a layer just beneath the surface of the ground that never thaws.
Out of the following given choices;
mucosa
serosa
submucosa
muscularis externa
The answer is muscularis externa. This layer is one of the 4 layers (tunics) of the GI tract. It is found beneath the submucosa and is composed of smooth muscles. The smooth muscles are responsible for the involuntary movements called peristalsis, that move food along the gastrointestinal tract.
