Bio lab youtube vidoe review

Watch this video and learn a bit about this event.
What caused the Cambrian explosion?

Answer the following questions in a short answer format (150-200 words per answer).

1What are some of the theories that are discussed on what caused the Cambrian explosion? Which one seems the most plausible and why?

2There are a ton of weird and creepy animals that arose in the Cambrian explosion, find one such example and discuss some theories on its life history that scientists have proposed. Cite your sources as well, a link to an article should suffice.

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