A, I believe. Because after collecting you need to analyze in order to do many other steps. Also all the other answers are something before collecting data
Answer:
They share common ancestors
Explanation:
DNA remain conserve for long time and genetic code dna us major source to know that if irganistims share common ancestors
Answer:
Anton Von Leeuwenhoek is the name
As the sun heats the surface of the oceans, two layers of water result. These layers are separated by the Thermocline.
so your answer is thermocline.