Muscle tissues signaling muscle tissues to contract.
Because they are the essential micronutrients for the different metabolites of living organisms?
Answer :
Choice A i think
Open-mindedness is needed for the emerging scientific ideas to be accepted (or : to not be rejected without consideration).
Additionally, open-mindedness as a attitude often leads to new scientific ideas emerging: it means that people are more comfortable to try out new things and to test new hypotheses.
<span>prorostomes and deuterostomes is your answer</span>
