Describe an event which negatively affects of coral reef ecosystem and the steps needed to restore to a stable system

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u. s. and mexico. the st. lawrence seaway provides an important trading route for the u. s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Study this image which statement best describes the rock shown check all that apply

Which enzymes break down carbohydrates?