Answer:
I'd say it's The discovery that all protists come from one common ancestor.
Explanation:
Based on some quick research, The current attempts of classification focus on grouping protists into between three and ten kingdoms, based on species’ common evolutionary ancestors.
Answer:
A question is developed from some observations and the hypothesis is a tentative explanation for that
Explanation:
The root contains hormones that make it grow away from the sun
Answer: B. cold, dry iceberg