Ascending large intestine, transverse, and descending
The majority of photosynthesis occurs in the chloroplasts.
Answer: Atoms were created after the Big Bang 13.7 billion years ago. As the hot, dense new universe cooled, conditions became suitable for quarks and electrons to form. Quarks came together to form protons and neutrons, and these particles combined into nuclei.
The periodic table only accounts for elements. It does not account for compounds, such as water.
