Answer:
HOW DARE YOU DELETE MY ANSWER
Explanation:
;O
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:
Answer:Use the word RNA (Ribonucleic acid) in a sentence
Explanation:Viruses represent a large group of infective agents that are composed of a core of nucleic acids, either RNA or DNA, surrounded by a layer of protein.
The si unit for time is the second
It is false that constellations are only visible in certain seasons due to the revolution of the Earth toward the constellation.