The word A. Estimate means approximation.
4. In 1854, Cyrus West Field conceived the idea of the telegraph cable and secured a charter to lay a well-insulated line across the floor of the Atlantic Ocean. Obtaining the aid of British and American naval ships, he made four unsuccessful attempts, beginning in 1857.
The last sentence is correct
Responsiveness to environment
Growth and change
Ability to reproduce
Have a metabolism and breathe
Maintain homeostasis
Being made of cells
Passing traits to offspring
Answer:
The main idea is the point of the paragraph. It's usually a sentence, it is usually the the first sentence. But yeah that's all I know. I hope I helped at least ._.