This clouds are commonly called as a solar nebula. This is
where some of the planets, like our planet Earth are formed. This clouds, are
made of intergalactic space that is filled with clouds of gas (Helium and
Hydrogen) and dust which to be known as molecular clouds.
Here are some of the themes in biology that come up again and again:
-cellular basis of life
-information and heredity
-matter and energy
-development and reproduction
-homeostasis
-evolution
-structure and function
-unity and diversity of life
-interdependence in nature
-science as a way of knowing
Answer: two identical cells
Explanation:
Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere. Without it, our planet would be inhospitably cold. Respiration, the process by which organisms liberate energy from food, emits carbon dioxide. When you exhale, it is carbon dioxide (amongst other gases) that you breathe out.