The tissue that always has an apical and a basal surface is tissue.

The tissue that always has an apical and a basal surface is epithelial tissues.

Explanation:

Epithelial tissues: It is a thin tissue which is covering all the exposed part of the body. They are helping in the formation of inner lining of the mouth, secretory glands, digestive tract, hollow parts of the organs such as heart, eyes, ear, lungs, etc.

Cells which making up epithelia closely bound to another through a specialized structure is known as tight junction. They are free from the nervous and blood vessels and are supported by the connective tissue is known as basement membrane. They have polarity with a basal domain which is facing the basement membrane and the apical surface facing the lumen present on the organ or the external environment.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

genetic variation will increase because of a new habitat and food source.

explanation: