A robin flying south for the winter
Answer: The chemical symbol always begins with a capital letter.
Explanation: If you look at the periodic table, there is no symbol which starts with a small letter
Homeostasis is the maintaince of a stable internal condition. If the cell membrane controls this by regulating what goes in and out of the cell(thats what the membrane does) Then the membrane helps maintain it, so if it were damage, you would have troublr mainting homeostasis
Answer:
541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.
source- Britannica
Explanation:
